Binomial probabilities and gender of children

Assume that male and female births are equally likely and that the birth of any child does not affect the probability of the gender of any other children. What is the probability of having exactly four boys in ten births? [Hint: binomial probability]

Solution Summary

In this solution, the probability of having four boys in ten births is given using simple explanation and calculations.

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Yupei Xiong, PhD

Rating 4.8/5

Active since 1969

BSc, Peking University
MA, Peking University
PhD, University of Maryland - College Park Campus

Responses 4195

Comments on Yupei's work:

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"the postfix expression must be like this: 1 2 + 3 4 - * 1 2 + / and theres some error Exception in thread "main" java.lang.NumberFormatException: For input string: "3 – 4" at sun.misc.FloatingDecimal.readJavaFormatString(Unknown Source) at java.lang.Double.parseDouble(Unknown Source) at Node.calculate(Node.java:33) at Node.calculate(Node.java:31) at Node.calculate(Node.java:28) at TreeTest.main(TreeTest.java:13)"

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