Question

1500 families with 2 children each, were selected randomly and the
following data were recorded.
Number of girls is a family 2 1 0
Number of families 102 675 723
out of these families, one family is selected at random. What is the
probability that the selected family has.
i) 2 girls
ii) 1 girl​

Answer 1

Answer:

p(2 girls)= 102/1500 = 51/750 = 17/250 Ans

p(1 girl)= 675/1500 = 135/300 = 27/60 = 9/20 Ans