In data , the greatest value is 98 and smallest value is 40 and size of class interval is 10. the number of classes is:

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5 + 3 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

In data , the greatest value is 98 and smallest value is 40 and size of class interval is 10. the number of classes is:

4

7

6

8