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Question

The median for grouped data is formed by using the formula:



Correct Answer
A

 l + (n2 - cf)f x h

Your Answer
B

l - (n2 - cf)f x h

Your Answer
C

l + (n2 + cf)f x h

Your Answer
D

l + 2n


Solution

The correct option is A

 l + (n2 - cf)f x h


The median for grouped data is formed by l + (n2cff ) × h.

Where l is the lower class limit of median class.
          n is the total number of observations.
          cf is the cumulative frequency of the class preceding the median class.
          f is the frequency of the median class and h is the class size.

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