Quantitative Skills Center

Statistics Refresher

Statistics Refresher Document: Reviews statistics topics such as measures of central tendency and spread, z-scores, confidence intervals, correlation and regression, and hypothesis testing. The worksheet does assume some previous exposure to statistics. It also contains practice problems and solutions.

Videos created by Dr. Charlie Collins from UW Bothell's School of Interdisciplinary Arts and Sciences

-It is recommended that you play the videos in Internet Explorer.

Intro to Statistics: Hypothesis testing, sampling, and frequencies


Correlation: Pearson and Spearman

Analysis of Variance (ANOVA): One-way independent samples

Analysis of Variance (ANOVA): Two-way independent samples

Dr. Collins also has a YouTube channel on statistics with videos that include: confidence intervals, T-tests, distributions, chi-squared, hypothesis testing, and central tendency.

DON'T FORGET- You can always stop by the Quantitative Skills Center for help in person and for resources.

Statistics and Probability Websites

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