You are constructing a histogram that is required to use 6 classes for a data set that ranges from 15 to 70. A class width of ____ units would be an appropriate choice
A)9
B)10
C)15
D)6

Question

Quizplus · Accepted Answer

To find the appropriate class width, subtract the smallest value in the data set from the largest value and then divide by the number of classes. Here, (70 - 15) / 6 = 55 / 6 ≈ 9.17. Since class width should be a whole number that covers the entire range, rounding up to the nearest whole number gives 10 as the most appropriate choice.

You Are Constructing a Histogram That Is Required to Use