Question

how to find median when class interval is given along with frequency

Answer 1

To calculate the mean of grouped data, the first step is to determine the midpoint (also called a class mark) of each interval, or class. These midpoints must then be multiplied by the frequencies of the corresponding classes. The sum of the products divided by the total number of values will be the value of the mean.


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Answer 2

Divide the nth observation by 2 and then check that ,that no.lie in which frequency....

Then u find median.....

I hope it help you