Question

Write the formula to find meadian of a grouped data?​

Answer 1

Answer:

The formula for median in a grouped data is median=l+(n2−cff)×h, where l represent the lower limit of the median class, n represents the total sum of all frequencies, cf represent the cumulative frequency before the median class, f represent the frequency of the median class and h represents the class width.

Answer 2

$M \: = l + ( \frac{ \frac{n}{2} - cf}{f} ) \times h$

l = lower limit of median class

n = number of observations

cf = cumulative frequency

f = frequency of median class

h = class size