Question

Q.25 Prepare a continuous grouped frequency distribution from the following table:
Class intervals
31-35
36-40
41-45
46-50
51-55
Frequency
4
8.
13
12
6
Also, find the size of class intervals.​

Answer 1

Answer:

Step-by-step explanation:

The lower limit for every class is the smallest value in that class.

The lower boundary of each class is calculated by subtracting half of the gap value 12=0.5 1 2 = 0.5 from the class lower limit.

Simplify the lower and upper boundaries columns.

Add the lower and upper class boundaries columns to the original table.

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