Question

Mean,mode and median formula plss

Answer 1

Mean = ∑X ÷ N

Here, ∑X= Sum of all the individual values and N= Total number of items

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

Mode = l + h [(f1-f0)/(2f1-f0-f2)]

Here, l= The lower limit of the modal class

f1 = Frequency corresponding to the modal class,

f2 = Frequency corresponding to the post-modal class,

and f0 = Frequency corresponding to the pre-modal class