Complete · 60 Days22 / 143
EasyProbability
Two Children
Goldman SachsMorgan Stanley
A family has two children. Given that at least one is a boy, what is the probability that both are boys?
Approach
List the four ordered outcomes and drop GG.
Related problems
Monty HallEasyBirthday ProblemMediumBayes — Disease TestMediumExponential SurvivalMediumCoin Toss — Two HeadsEasyRoll Until All Six FacesMedium
More in Probability.