Question

find the a.m of 5,6,9,10,12,3,11​

Answer 1

Given,

Observations 5,6,9,10,6,12,3,6,11,10

Number of observations = 10

Mean = sum of observations/ number of observations

= 5+6+9+10+6+12+3+6+11+10/10

= 78/10

=7.8

Hopes it helps :)