3
QuizMultiple Choice

Normal Distributions

Question 3 • SVH #CR Statistical Modeling 25-26

A basketball player averages 22.5 points scored per game with a standard deviation of 6.2 points. In one game, the number of points the athlete scored was 1.2 standard deviations below the mean. Which of the following is the z-score for the number of points scored?

Answer
A
–7.4
B
–1.2
C
1.2
D
7.4

Explanation

A z-score tells how many standard deviations a value is from the mean. Since the player's score was 1.2 standard deviations below the mean, the z-score is negative: −1.2. Therefore, the correct choice is B, −1.2.

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