
Concept explainers
Family Planning A intend to have two children. What is tie probability that they will have child of each sex? The French mathematician IY Alembert analyzed this problem (incorrectly) by reasoning that three outcomes are possible: or two girls, or one child of each sex. He concluded that probability of having of each sex is mistakenly assuming that three outcomes are likely.
(a) Model this problem with a pair of coins (using "heads" for boys and "tails" for girls).
or write a program to model of problem. perform the experiment 40 mere times.
Counting the number of boy-girl combinations. Estimate the probability of having child of each.
(b) Calculate the correct probability of having one child of each sex and compare this with your result from part (a).

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Chapter 9 Solutions
College Algebra
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