Question

how to find the mean of unequal class intervals with different class size​

Answer 1

Answer:

Step-by-step explanation:

for example

take the classes

11-20

21-30

and there class size is different

now subtract 0.5 in upper limit and add 0.5 in lower limit

now the classes becomes

10.5 - 20.5

20.5 - 30.5

now it become class size become same and they become equal classes

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