Question

what is the formula of mean and median

Answer 1

Step-by-step explanation:

Mean= ∑fX/∑f

Here, ∑fX= Summation of the product of values of items with their corresponding frequencies

Median = l/2 + h/f [ N/2 – C]

Here, l = The lower limit of the median class

h = size of the class, f = Frequency corresponding to the median class

N = Summation of frequencies

C = The cumulative frequency corresponding to the class just before the median class