Question

1. determine whether the data modeled in the histogram is normally distributed (yes) or not (no).

histogram: title \time to complete an exam\, x - axis (time (minutes)): 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50; y - axis (frequency): 0 - 8
a. yes
b. no

Explanation:

A normal distribution's histogram is symmetric around the mean, forming a bell - shaped curve. Looking at the "Time to Complete an Exam" histogram, we can see that the frequencies increase to a peak (around 45 minutes) and then decrease in a roughly symmetric way on both sides of the peak. The left - hand side (times less than 45 minutes) and the right - hand side (times greater than 45 minutes) have a similar pattern of frequency change, which is characteristic of a normal distribution.

Answer:

A. Yes