Solve the problem. Round results to the nearest hundredth.
-The mean height of a basketball team is 6.1 feet with a standard deviation of 0.2 feet. The team's center is 6.7 feet tall. Find the center's z score. Is his score unusual?
A)3, yes
B)3.3, yes
C)2.5, no
D)2.55, no

Question

Quizplus · Accepted Answer

The z score is calculated by subtracting the mean from the individual score and then dividing by the standard deviation. For the center's height, $ z = \frac{6.7 - 6.1}{0.2} = 3 $. A z score of 3 is considered unusual because it is more than 2 standard deviations away from the mean.

Solve the Problem