Work Step by Step
The probability of each given child being a boy is .5. Thus, the probability of all boys is: $$.5^4 =.0625$$ So, the probability of all the children being one sex is: $$.0625\times 2=.125$$
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.