A data of hundred families with only two children where collected that data is as under
two girl's in 40 one girls in 35 zero girls in 25
a family is selected at random find the probability that the selectrd family has one girl
Answers
7/20 is the probability that a family selected at random has one girl
Step-by-step explanation:
Number of gi rls Number of Families Total number of girls
0 25 0
1 35 35
2 40 80
Total 100 115
a family is selected at random the probability that the selected family has one girl = 35/100 = 7/20
if a girl is elected at at random \the probability that the selected girl is from family has one girl = 35/115 = 7/23
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