Question

The number of children in 10 families of a locality are 1, 4, 3, 3, 4, 2, 2, 3, 3, 5. Find the
mean number of children per family.
​

Answer 1

Step-by-step explanation:

Given that

The numbers of children in 10 families of a locality are 2,4,3,4,2,3,5,1,1,5

We know mean =

No. of observations

sum of observations

=

10

2+4+3+4+2+3+5+1+1+5

=

10

30

=3

∴ Mean number of children per family=3.

Answer 2

Answer:

3

mean = sum of observations/ no. of observations

mean = 1+4+3+3+4+2+2+3+3+5/10

mean = 30/10

mean = 3