Question

22.1.005 MI A data set with whole numbers has a low value of 20 and a high value of 82. Find the class width for a frequency table with seven classes. Find the class limits for a frequency table with seven classes. Lower class limit-upper class limit First class Second class Third class Fourth class Fifth class Sixth class Seventh class Need Help? Read It

Answer 1

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Lets see how to do this. We have the number of data points as 82-20+1 = 63 which are to be divided between 7 classes. This means 63/7 = 9 in each class. The class width is therefore 9

lower class limit higher class limit
First class 20 28
Second class 29 37
Third class 38 46
Fourth class 47 55
Fifth class 56 64
Sixth class 65 73
Seventh class 74 82