A survey of showed that 6% of families-1 child, 38% -2, 42%-3 and 10%-3 or more. A family is selected at random. What is the probability that it has some children?
1 Answer
May 9, 2018
When a family is selected at random, the probability that it has some children is
Explanation:
As
This means that
Hence, when a family is selected at random, the probability that it has some children is