Biostatistics: Mean, Median, Risk Ratios · USMLE Step 1

A high standard deviation in a dataset indicates:

  1. The mean is inaccurate
  2. Greater variability around the mean
  3. Data are clustered tightly
  4. The distribution must be skewed
Show answer and explanation

Correct answer: Greater variability around the mean

Standard deviation measures how spread out the values are; higher values imply more spread.

Difficulty: Medium Question 7 of 20

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