7. Out of the families having three children, a family is chosen randomly. Find the probability that the family has 1) Exactly one girl 2) At least one girl 3) At most one girl

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Out of the families having 3 children, a family is chosen random. Find the probability that the family has

Exactly 1 girl

At least 1 girl

At most 1 girl

Q. One family has been chosen out of 200 families having 3 children . What is the probability that there is at least one girl ?

Q. 1500 families with 2 children were selected randomly and the following data were recorded:

Number of girls in a family	0	1	2
Number of families	211	814	475

If a family is chosen at random, compute the probability that it has:
(i) No girl
(ii) 1 girl
(iii) 2 girls
(iv) at most one girl
(v) more girls than boys

Q. 1500 families with 2 children were selected randomly, and the following data was recorded

Number of girls in a family	2	1	0
Number of families	475	814	211

The probability of a family, chosen at random, having 1 girl is ...........

Question 2 (ii)
1500 families with 2 children were selected randomly, and the following data was recorded:
$\begin{matrix} Number of girls in a family & 2 & 1 & 0 Number of families & 475 & 814 & 211 \end{matrix}$
Compute the probability of a family, chosen at random, having 1 girl.

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