Question

finish times (to the nearest hour) for 10 dogsled teams are shown below. find the class width. use five classes. (round your answer to the nearest integer.) 252 314 315 284 255 245 292 335 244 342 ○ 117 ○ 119 ○ 21 ○ 20 ○ 22

Explanation:

Step1: Find range (max - min)

First, identify the maximum and minimum values. The data is: 252, 314, 315, 284, 255, 245, 292, 335, 244, 342.
Max = 342, Min = 244.
Range = \( 342 - 244 = 98 \).

Step2: Calculate class width

Class width formula: \( \text{Class Width} = \frac{\text{Range}}{\text{Number of Classes}} \).
Number of classes = 5.
So, \( \text{Class Width} = \frac{98}{5} = 19.6 \).
Round to nearest integer: \( 20 \).

Answer:

20