Question

The numbers of children in 10 families of a locality are:
2, 4, 3, 4, 2, 0, 3, 5, 1, 1, 5. Find the mean number of children per family.

Answer 1

The number of children in 10 families is
⇒ 2, 4, 3, 4, 2, 3, 5,1,1, 5.

∴  Mean number of children per family  = `"Total no . of chidren "/" Total families "`

 = `(2 + 4 + 3 + 4 + 2 + 3 + 5 +1+1+ 5)/ 10`

 = ` 30 / 10`

 = 3