Some resources for help with basic statistics

To provide a jumping off point for any r/NFLstatheads readers without any statistics experience, I have compiled a set of links to some helpful resources. If you are unfamiliar with any of the topics listed below, reading up on them would probably improve your understanding/enjoyment of the research posted to this subreddit.

In the future I will link back to this post if any of these basic concepts need to be explained, and I would encourage other users to do the same.

Let me know if the list below is missing an important topic or if you know of any better links/resources.

Descriptive Statistics

• Mean, median, and mode (text, video)
• Standard deviation and variance (text, video)
• Skewness, kurtosis

Common Probability Distributions

• Binomial distribution (text, video)
• Normal distribution (text, video)
• Poisson distribution (text, video)
• Probability density functions vs. cumulative density functions (text, video)

Some Basic Statistical Tests/Tools

• Confidence intervals (text, video)
• Hypothesis testing (text, video): z- and t-tests (z-test text, t-test text, video), chi-squared test (text, video)
• Analysis of Variance (ANOVA) (text, video)
• Linear regression and correlation ( r^2 ) (text, video)
• Multiple regression (text, video)
• Logistic regression (text, video: #1 #2)

Some Important Topics

• Regression toward the mean (text, video)
• Correlation does not imply causation
• Overfitting