Question

find the average of the following sets of number a. 20 ,18,21 b.27,40and 56

Answer 1

Average = mean

Mean = sum of all obv.\Total no. of obv.

Mean of: a)20,18,21,

And b) 27,40,56

a) 20+18+21/3 = 19.6

b) 27+40+56/3 = 41

Answer 2

Answer:

here is your answer