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Statistical Thinking

Interpret and communicate statistics honestly. Tests descriptive stats, hypothesis testing, and the ability to spot misleading analysis.

Descriptive statisticsHypothesis testingStatistical reasoningBusiness communication

Choose Your Level

Pick the difficulty that matches where you are. You can come back and try a harder level later.

Beginner

Descriptive Statistics Memo

Calculate and interpret mean, median, mode, and standard deviation for a salary dataset.

1 to 2 hours 3 criteria
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Intermediate

Hypothesis Testing (A/B Test)

Determine if a website change actually improved conversion, or if it was just noise.

2 to 3 hours 4 criteria
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Advanced

Correlation vs. Causation Case Study

Tear apart a misleading business report that confuses correlation with causation.

3 to 4 hours 4 criteria
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