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Descriptive Statistics
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Central Limit Theorem
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P Values And Significance
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Correlation And Regression Stats
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easy
Correlation And Regression Stats
Pearson correlation between two features is r = 0.85. A teammate says "these features are almost perfectly linearly related." What is the most important limitation of this interpretation?
A
Pearson r = 0.85 is not statistically significant without checking the p-value
B
Pearson r measures linear association only — the variables could have a strong nonlinear relationship even with r near 0
C
r = 0.85 means 85% of variance is explained
D
Pearson r only applies to normally distributed variables
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