Concept explainers
Determine the probability that 5 of her 6 children are girls.
Answer to Problem 7CYU
The probability that 5 of her 6 children are girls is
Explanation of Solution
Given:
If a woman is equally as likely to have a baby boy or a baby girl, use binomial expansion to determine the probability that 5 of her 6 children are girls. Do not consider identical twins.
Concept Used:
Find the probability by expanding
Calculation:
Find the probability by expanding
By adding the coefficients of the polynomial, we determine that there are 64 combinations of girls and boys.
The term
Probability =
Therefore, the probability that 5 of her 6 children are girls is
Thus, the probability that 5 of her 6 children are girls is
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Glencoe Algebra 2 Student Edition C2014
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