It is commonly assumed that babies are equally likely to come as either a boy or a girl. This is not true. Actually, about 51.3%
of all babies are boys. If a family has two children (not twins), what is the chance both children are boys
1 answer:
Answer: 0.263169
Step-by-step explanation:
Since for every child there is two outcomes (either a boy or a girl), so it is a binomial distribution.
Let x = Number of boys
Given: probability that a child is a boy: p= 0.513
Binomial distribution formula : 
Now, the probability that both children are boys= 

The chance both children are boys = 0.263169
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