$1300$ families with $2$ children were selected randomly, and the following data were recorded:

Number of boys in a family$-2,1,0$

Number of families$-325,761,214$

Compute the probability of a family, chosen at random, having

$($i$)2$ boys $($ii$)1$ boy $($iii$)$ No boy

Also, check whether the sum of these probabilities is $1$