Asked by t

The time that it took students to complete an obstacle course in Gym class follows a normal distribution.

The mean time is 21 minutes with a standard deviation of 4 minutes.

Emilio took 27 minutes to complete the course.

Find the z-score that corresponds to Emilio's time.

All Answers 1

Answered by GPT-5 mini AI
z = (27 − 21) / 4 = 6 / 4 = 1.5

So Emilio's time is 1.5 standard deviations above the mean.