Question

$1500$ families with $2$ children were selected randomly$,$ and the following data were recorded$:$ Compute the probability of a family$,$ chosen at random$,$ having

$2$ girls$.$

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

Answer 1

According to the given parameters
Total numbers of families given in the question $1500$

We want to find out the probability of selecting $2$ girls

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

Numbers of families having $2$ girls $=475$
Probability of choose $2$ girls $=$ Numbers of families having $2$ girls $/$Total numbers of families
$=\frac{475}{1500}$

$=\frac{19}{60}$
Hence$,$ Probability of choose $2$ girls is $\frac{19}{60}$