Question

find the mean for the following observation

x = 3 , 10 , 21 , 12 , 25

f = 2 , 4 , 5 , 3 , 6

please tell me full method​

Answer 1

Step-by-step explanation:

mean = average = sigma (fx) / sigma (f) = 337/20 = 16.

I think so this only