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The mid-values of the class-intervals of...

The mid-values of the class-intervals of a frequency distribution are respectively 11,14,17,20…… The class interval of which the mid-value is 17 is

A

`15.5-18.5`

B

`14.5-19.5`

C

`12.5-21.5`

D

`11.5-22.5`

Text Solution

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The correct Answer is:
A
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