[College Statistics] Correlation/Dependence

First of all, a big thank you to anyone reading this and trying to help.

This is not a problem from a course or a textbook, just something I was thinking about.

I'm trying to figure out the relationship between two variables. Say I have the data for a 1000 cars that have crashed. Out of those, 51% of them are green, and 49% are red. Assume there is no other possible color. Someone is claiming that the car being green is what caused the crashes. Intuitively, this doesn't seem to be true to me. Furthermore, there are other, unstated and unquantified variables besides the cars' color.

So, what I'm looking for is: which is the proper way to evaluate the assertion that the car being green is the cause of the accident? Am I looking for a hypothesis test (the null hypothesis being that color has nothing to do with the crashes, the alternate hypothesis being that being green causes the car to crash)? Am I looking for the correlation between the two variables? Or am I looking for something else entirely?

Thank you for taking the time to read this. Please excuse me for being so vague. I took a college level Intro to Statistics course, but none of this was ever covered (hypothesis testing, correlation, etc...). Also, please excuse me for any mistakes in my writing, as I'm not a native speaker.

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πŸ‘€︎ u/lmtstrm
πŸ“…︎ Jun 16 2015
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Low tolerance and dependence liabilities of etizolam: Molecular, functional, and pharmacological correlates pharmacological correlates sciencedirect.com/science…
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πŸ‘€︎ u/awakebustillinbed
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Edited: These charts are moving too suspiciously in correlation with eachother, come on guys you could of made it abit less bait? Digging that grave deeper and deeper day by day as we hold tighter and tighterπŸ’ŽβœŠ I took the live discussion off.
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πŸ‘€︎ u/mvea
πŸ“…︎ Jan 14 2019
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WD Symptoms Correlate with Previous Opiate Dependence?

Like everyone else here I have noticed many people have a pretty easy time getting off Kratom but some have some pretty significant symptoms. Obviously time, dosage, physiology, etc all impact the severity of WD.

I have noticed a trend though that people that had previously WD from opiates seem to have more noticeable symptoms. This is totally anecdotal but does anyone else see this trend or better yet know of any research supporting this claim?

I know of the concept of kindling with benzos/alcohol and wonder if this could be the same mechanism?

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πŸ‘€︎ u/hubert7
πŸ“…︎ Jan 26 2019
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The US must reduce its dependence on China for medicine and medical supplies abqjournal.com/1435124/th…
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πŸ‘€︎ u/johnruby
πŸ“…︎ Mar 22 2020
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Cryptocurrency correlation analysis: how do altcoins depend on bitcoin in 2019?

We have repeatedly said that the value of most coins depends on the value of bitcoin. This factor is very important in the formation of the portfolio, and we will discuss this in more detail.

To do this, we introduce a term such as β€œcorrelation”. Correlation is a market situation in which one asset repeats the movement of another asset. The dominant position now is Bitcoin. Coins such as Ethereum, Litecoin, Ripple and others are subject to fluctuations when the value of β€œdigital gold” changes.

The range of correlation changes is from -1 to +1. Three scenarios are possible:

The correlation coefficient is +1. The movement of two coins occurs absolutely synchronously, that is, a change in one of them in price, due to some external factor (for example, a sharp drain of assets from large holders, hacking of the exchange or sanctions on an asset by a large state), leads to an inevitable change in the price of the second.

The correlation coefficient is 0. Assets move relative to each other independently, that is, a change in the price of one of them doesn’t affect the other coin.

The correlation coefficient is -1. The movement of assets is carried out in opposite directions, that is, an increase in the price of one of them leads to a decrease in the other (in the same percentage).

Here we need to give a more vital example for you. With the growth of income, the value of real estate becomes higher due to greatly increased demand. This is an example of a positive correlation. With wasted time, your academic performance is low. The more time is spent, the lower the performance. Here we already see a negative correlation.

Correlation of cryptocurrencies among themselves on a 3-month period

You can see the degree of correlation of sixteen digital currencies with the highest market capitalization. The period in question is 3 months. However, the value of the correlation coefficient decreases, for example, the correlation matrix for 1 year shows a decrease in the average value by 0.2.

1 year matrix correlation

It’s easy to see that almost all the coins are positively correlated. This tells us that external factors somehow affect the value of each asset. Somewhere – to a greater

... keep reading on reddit ➑

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πŸ“…︎ Aug 20 2019
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Citigroup financials Q1-Q4 & yearly back to 2007. Q4 2018 Monday pre-market. HUGE tax cost in Q4 2017 made Net income profit really negative. Revenues in majority of quarters have been declining. Maybe a beat since last quarter was weak? Depends on revenues. No correlation to market S&P 500 returns
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πŸ‘€︎ u/Nonaluuluu
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For the first time, scientists have identified a correlation between specific gut microbiome and fibromyalgia, characterized by chronic pain, sleep impairments, and fatigue. The severity of symptoms were directly correlated with increased presence of certain gut bacteria and an absence of others. psychologytoday.com/au/bl…
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Michael E. Mann: "Only in the Trumpian era of gaslighting could a progressive filmmaker produce a polemic premised on the absurd notion that ultra right-wing plutocrats are secretly funding the effort to end our dependence on fossil fuels. And get progressives to actually fall for it." twitter.com/MichaelEMann/…
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Notice, if you smoke, use methamphetamine, opioids (in high doses), or have a drug dependence you're at higher risk for COVID-19. Please take extra measures to prevent infection and look out for fellow users. drugabuse.gov/about-nida/…
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πŸ‘€︎ u/cyrilio
πŸ“…︎ Mar 17 2020
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There’s probably a very strong correlation between anti-maskers and people who don’t put their headlights on when it’s raining.
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πŸ‘€︎ u/AzSy11
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Cannabis appears to help induce sleep but it does not seem to promote sleep continuity, according to new preliminary research published in the journal Drug and Alcohol Dependence psypost.org/2020/02/study…
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πŸ‘€︎ u/HeinieKaboobler
πŸ“…︎ Feb 25 2020
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For the first time, scientists have identified a correlation between specific gut microbiome and fibromyalgia, characterized by chronic pain, sleep impairments, and fatigue. The severity of symptoms were directly correlated with increased presence of certain gut bacteria and an absence of others. /r/NHSandME/comments/ls1z…
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πŸ‘€︎ u/Tangled_Wires
πŸ“…︎ Feb 25 2021
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How can I overcome my dependence on "semitones" to better grasp harmony and scales/modes?

I'm entirely self taught in music theory, so the little I know, I never had anyone to ask why it is the way it is. So I learnt intervals and just managed them in "semitones" because it was the "distance" indicated by a fret (I can play a bit of guitar) and keyboard (I can't).

The problem is that using that method a lot of stuff doesn't make sense. I don't understand why sometimes notes are labelled b (I understand it's the opposite of a sharp, but I think I've sometimes seen E being labelled Fb which makes no sense). I also build up chords on the keyboard by counting semitones and then adding keys to the chord, which precludes playing fluently, as I can't seem to find my way around just nailing a chord with my fingers (always have to pause and think "wait, so the root is A#, let me count four semitones to find the major third"). With guitar it's not so bad but still, not good enough.

How can I learn to overcome this? Do I need to deprogram? Any courses or whatever?

Edit: so many good responses. Thanks a lot for the help, people!

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πŸ‘€︎ u/guileus
πŸ“…︎ Oct 08 2019
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[todayilearned] TIL that the collapse of the Soviet Union directly correlated with the resurgence of Cuba’s amazing coral reef. Without Russian supplied synthetic fertilizers and ag practices, Cubans were forced to depend on organic farming. This led to less chemical runoff in the oceans. psmag.com/news/inside-the…
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πŸ‘€︎ u/Know_Your_Shit_v2
πŸ“…︎ Mar 04 2020
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Tesla has met with the Greek government to propose ways to modernize the electric grid of the country’s many islands in the Mediterranean sea with microgrids and renewable energy to reduce their dependence on fossil fuels. electrek.co/2019/01/14/te…
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πŸ‘€︎ u/endelehia
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Total COVID-19 Mortality in Italy: a factor of 2 excess mortality and age dependence of fatality rates through Time-Series Analysis medrxiv.org/content/10.11…
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Phenibut (Ξ²-Phenyl-Ξ³-Aminobutyric Acid): an Easily Obtainable β€œDietary Supplement” With Propensities for Physical Dependence and Addiction | Current Psychiatry Reports [2019] link.springer.com/article…
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πŸ‘€︎ u/roionsteroids
πŸ“…︎ Mar 11 2019
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Check out how Dogecoin depends on Bitcoin. This correlation analysis might give you some interesting insights. coinpredictor.io/altcoins…
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πŸ‘€︎ u/sidhucollettepf
πŸ“…︎ Nov 07 2018
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The greatest social correlation of 2016 Trump voters was the false belief that the United States was founded as a Christian Nation. Christian nationalism proved more influential than racism, sexism, xenophobia, Islamophobia, and economic dissatisfaction. academic.oup.com/socrel/a…
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πŸ‘€︎ u/andy5000
πŸ“…︎ Jan 31 2020
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TIL that tobacco is third in the list in terms of "Dependence potential" (loosely how addictive the substance is) with Heroin and Cocaine being first and second respectively. Others worth mentioning: alcohol (fifth) and cannabis/marijuana (eighth). en.wikipedia.org/wiki/Sub…
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πŸ‘€︎ u/joeljpa
πŸ“…︎ Jan 26 2019
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when ur ed is worsening, ur dependence on weed is increasing, ur thighs are a fucking mess and ur constantly jumping between isolating completely or spilling everything to a random stranger
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πŸ‘€︎ u/uselesswhore420
πŸ“…︎ Mar 11 2020
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Tony’s and Carmella’s face after AJ blows up his car in the finale and says β€œthis is good, it’ll force me to take the bus. We have to break our dependence on foreign oil.” Is the funniest scene in the whole show
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πŸ‘€︎ u/DookieMays
πŸ“…︎ Nov 07 2019
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How tall are you guys? Afaik there's no correlation with penis size and height, but I'm still curious

I'm only 5'7'', so if there is a correlation, I guess I'm an exception to the rule. Even though I've also heard people say that it's usually the short guys who are "well-endowed", but that's probably no more true than saying the same for tall guys.

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πŸ‘€︎ u/Vilhjalmur4
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New study finds statistically significant correlation between higher COVID-19 knowledge, more positive attitudes and, most importantly, better adoption and implementation of safety practices.Researchers conclude that improving knowledge among residents is paramount to successfully fighting COVID-19. psypost.org/2020/04/bette…
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πŸ‘€︎ u/sdsanth
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β€˜Purity Tests’: How Corporate Media Describe Progressives Standing Up for Principles - The phrase is code for elites being pressured in ways they don’t like, and is often a shield against legitimate criticism of corruption or dependence on corporate power commondreams.org/views/20…
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πŸ‘€︎ u/Hanging-Chads
πŸ“…︎ Apr 19 2019
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The collapse of the Soviet Union directly correlated with the resurgence of Cuba’s amazing coral reef. Without Russian supplied synthetic fertilizers and ag practices, Cubans were forced to depend on organic farming. This led to less chemical runoff in the oceans. psmag.com/news/inside-the…
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πŸ‘€︎ u/Willybud
πŸ“…︎ Mar 04 2020
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Is there a correlation between schizoid traits and creative problem solving skills?

Seeing or coming up with creative problem solving strategies, thinking of many potential interconnected cause and effects, thinking of concepts and ideas mathematically or in terms of patterns?

What's your experience with this? I want to know your direct personal opinion and experience, and a "why" would be helpful too. Thank you so much!

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πŸ‘€︎ u/HumbleBumble0
πŸ“…︎ Jan 20 2021
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Difference between dependence and addiction?

So going on 6 months of Hydro's, started at 10mg/day, went to 15/20 went back to 10. I've noticed that taking 20 again normals me out. It's obvious my body needs them. These are legit scripts for joint pain. How far am I in this problem? TIA.

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πŸ‘€︎ u/Shadowlab72
πŸ“…︎ Mar 30 2020
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The Dopamine Dilemma (Part II) β€” Could Stimulants Cause Tolerance, Dependence, and Paradoxical Decompensation? ncbi.nlm.nih.gov/pmc/arti…
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πŸ‘€︎ u/K97
πŸ“…︎ Sep 28 2019
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A lifetime in Britain has given me an addiction to good quality squash. Now I've emigrated and there's no way to sate this dependence.

Solbærsirup and apelsinsaft are just too damn dense, so you have a layer of plain water and beneath that a thick reservoir of strong euch. I need some fruit and barley man, I needs it bad.

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πŸ‘€︎ u/Jalsavrah
πŸ“…︎ Nov 22 2019
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Does running style matter? New research says that there is no correlation between style and injuries

What do you think about this recent study? Researchers from Finland and Canada argue that there is no running style that predicts an injury.

"The data were collected from 291 runners, both healthy runners and those with common injuries in the knee, foot and ankle, and hip. Researchers chose equal numbers of men and women, and competitive and recreational runners, because these are groups who typically run a little differently from one another. No labels were applied to any of the participants and an β€˜unsupervised’ approach was taken to analyze data using an artificial intelligence method called hierarchical cluster analysis."

I think if this is true, it would make running for many people less stressful. People seem to worry about their running style quite a lot.

Links:

https://www.ucalgary.ca/news/researchers-discover-theres-no-best-way-run

https://www.ncbi.nlm.nih.gov/pubmed/31900980

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πŸ‘€︎ u/amondyyl
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Strong correlation between prevalence of vitamin D deficiency and COVID-19 infection rates in nations of Europe twitter.com/Covid19Crushe…
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πŸ‘€︎ u/veganmark
πŸ“…︎ Jan 29 2021
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Macron spoke today of possibly building a new relationship with Russia as part of constructing a more independent EU foreign policy -- one with less dependence on the United States. What do you think a constructive and peaceful 21st Century relationship with Russia would look like for the EU?

​Shorter: what kind of relationship between the EU and Russia do you think Macron is imagining?

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πŸ‘€︎ u/comments83820
πŸ“…︎ Aug 28 2018
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Christian and co-dependence

From reading the comments, I've got the feeling that few people know what it's like to be in a codependent relationship with a mentally ill person you really care about. I think this is a major part of Christian's character that is supposed to be shown but also obscured as the viewer is drawn into Dani's perspective. I do think Christian is an asshole, but I also think that is fatal flaw was that he was a caring asshole who couldn't see that he was in a codependent relationship he wasn't prepared for.

People in several threads seem to think Christian's conversation with Dani about her sister at the beginning is evidence of emotional abuse (many in particular call it gaslighting) because he suggests that it's possible that Dani's sister is trying to get a rise out of her because Dani often lets her. It's important to not be outcome-oriented in the interpretation of this conversation. It is made clear Dani has a problem with anxiety (they show her take an anxiety medication), and it's relatively common for people suffering from anxiety to over-interpret and doom-loop. It is possible that he is familiar with this type of response to Dani's sister's behavior and is trying to de-escalate a panic attack. If you've been in a codependent relationship with someone with anxiety you're familiar with this routine. The fact that her sister chose to actually enact the worst case scenario is a plot device and irrelevant to the legitimacy of his response or advice. The scene is structured in such a way that the audience is supposed to feel that this time is different, but Christian doesn't get the audience's experience of Dani's perspective or the scene of the phone ringing. Instead, he's on the other side of a telephone, and he's already specified that he smoked marijuana. Like many in codependent relationships, he's already chosen to remove himself from his own situation and place himself in hers, even though he is not in the mental state to deal with it. The fact that he tried and failed in this case only explains his own guilt later on, it is not evidence of his negligence.

This scene leads to Christian's conversation with his friends. Codependent relationships strain friendships and are often the subject of unwarranted opinions. Christian is shown as clearly torn between his feelings for Dani and the large burden that comes with the relationship. He is mentally preparing to end the relationship, which is a healthy choice, but is second guessing it (an understan

... keep reading on reddit ➑

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πŸ“…︎ Jul 15 2019
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The state-by-state correlation between teen birth rates and religious conviction [OC]
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πŸ‘€︎ u/academiaadvice
πŸ“…︎ Aug 10 2017
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Super interesting exploration of how childhood abuse breeds a lack of assertiveness, co-dependence and it's connection to the 'Fawn' fear response pete-walker.com/codepende…
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πŸ‘€︎ u/Beethovensnothere
πŸ“…︎ Aug 14 2019
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Dependence and depression

I've been taking kratom daily for about a year and a half now. It started off with fairly low doses (5-8 grams a day). But for a while its been heightened to 40-60+ a day. My whole life I've struggled with emotional issues like anxiety and depression. However, ever since I became dependent on kratom, I feel like I've lost all control over my emotions and can't feel joy at all. I feel badly anxious, empty, or depressed whenever I don't have kratom. Its such bad misery that makes my body feel exhausted and I just don't feel like doing anything, but I don't want to NOT be doing anything either. I'm always feeling so uncomfortable and unhappy. Has anyone had a similar experience and can give me some advice or input about my situation? I really want to kick this shit and start feeling alive. I really hope I'm able to actually be happy without kratom one day.

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πŸ‘€︎ u/Neb_Yula
πŸ“…︎ Apr 01 2020
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Stoner culture and many peoples opinions about weed are cringey and makes it appear they have an addiction or dependence rather than a simple vice.

People that revolve their life around weed, and even those who smoke it every day have a terrible mindset. If you feel like you need to smoke, you likely have a dependence to weed.

Stoner culture is also very cringey, imagine if someone revolved their life around alcohol or tobacco. It would be cringey as well and I don't think anyone would question that the person doing it is dependent or addicted to either.

Edit: I'm pro legalization btw

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πŸ“…︎ Jul 27 2019
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Imagine if there was a correlation between saying racist things and having racist beliefs
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πŸ‘€︎ u/ButtrNuttr
πŸ“…︎ Nov 18 2019
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Calculating the correlation between Baker Mayfield's Passer Rating and the number of Cheesecake Factories per capita in the state in which he played.

Ripping off of a post by u/eaglesnation11. Similar to what he said in his post, I have no professional background in statistics, but do have a general background from a few high school and college classes. Additionally, I have a lot of spare time on my hands. Anyways, as some of you may know, Baker Mayfield allegedly has an affinity for getting sloppy top behind the Cheesecake Factory. Without any evidence saying one way or another if the rumors are true, the memes must go on. In this post, I have calculated the correlation between Baker Mayfields Passer Rating and the Cheesecake Factories per capita in the state that he played in for that week. Hopefully the hard data can give us a clue if Baker Mayfield's alleged Cheesecake Factory habits affect his performances in games. The number of Cheesecake Factory restaurants per state was pulled from https://www.thecheesecakefactory.com/locations/ and the population estimates were pulled from www.census.gov/quickfacts.

Figure 1

Week Location/ State Passer Rating Cheesecake Factories per Capita
1 Ohio 64.0 5.9883
2 New Jersey 83.6 1.1208
3 Ohio 64.0 5.9883
4 Maryland 102.4 9.8634
5 California 13.4 9.7653
6 Ohio 54.9 5.9883
7 Bye NA NA
8 Massachusetts 79.2 1.0156
9 Colorado 90.7 5.2095
10 Ohio 102.7 5.9883
11 Oho 92.3 5.9883
12 Ohio 118.1 5.9883
13 Pennsylvania 71.9 3.9056
14 Ohio 38.9 5.9883
15 Arizona 90.0 8.2432
16 Ohio 84.4 5.9883
17 Ohio 79.6 5.9883

This data gave us a correlation coefficient of -0.08159, which basically says there was very little to no correlation at all. This doesn't tell us anything about if the rumors are true, but it does tell us that even if the rumors are true, his performance isn't affected by it. One data point did stand out to me though. In week 5 at San Francisco, Baker threw for a passer rating of 13.0. California also had by far the most total Cheesecake Factories at 39. However, this data point may have just been an outlier, because despite the high total of Cheesecake Factories, California does not have the highest per capita. More research is needed, and I hope if anyone else is as bored as me, they continue these type of posts with other players.

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πŸ‘€︎ u/Jevarden
πŸ“…︎ Mar 24 2020
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The correlation between polling numbers and media coverage is lower for Yang than any other candidate (Axios)
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πŸ“…︎ Sep 03 2019
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Correlation between internet explorer usage and murder rates in US... Damn!
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πŸ‘€︎ u/thebiryaniboy
πŸ“…︎ Jan 21 2020
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In the Ornox Galaxy, the Alerteal are probably the most social of the sapient species. They love social interaction above all else, and will always be in the company of someone be it Alerteal or not. Mostly because they have a psychological dependence on social interaction, but hey, details.
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πŸ‘€︎ u/KaiserGustafson
πŸ“…︎ Dec 24 2019
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