$50$ 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 $10$ $32$ $8$
If a family is chosen at random,compute the probability that it has: $(1)$ two girls,$(2)$ one girl,$(3)$ no girl.
| Number of girls in a family | $0$ | $1$ | $2$ |
| Number of families | $10$ | $32$ | $8$ |
If a family is chosen at random,compute the probability that it has: $(1)$ two girls,$(2)$ one girl,$(3)$ no girl.
The total number of families is $50$.
$(1)$ Probability of having $2$ girls:
Number of families with $2$ girls = $8$.
Probability = $\frac{8}{50} = 0.16$.
$(2)$ Probability of having $1$ girl:
Number of families with $1$ girl = $32$.
Probability = $\frac{32}{50} = 0.64$.
$(3)$ Probability of having no girl:
Number of families with $0$ girls = $10$.
Probability = $\frac{10}{50} = 0.20$.
$(1)$ Probability of having $2$ girls:
Number of families with $2$ girls = $8$.
Probability = $\frac{8}{50} = 0.16$.
$(2)$ Probability of having $1$ girl:
Number of families with $1$ girl = $32$.
Probability = $\frac{32}{50} = 0.64$.
$(3)$ Probability of having no girl:
Number of families with $0$ girls = $10$.
Probability = $\frac{10}{50} = 0.20$.
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