Let G for Girl and B for Boy, then total possible outcomes: BB, GB, BG, GG
Total number of outcomes = 4
Since, we have to find the probability that there is at least one boy in the family.
So, favorable outcomes are: BB, BG, GB
Total number of favorable outcomes = 3
We know,
Probability of occurrence of an event = (Total number of favorable outcomes) / (Total number of outcomes)
Therefore, the probability of at least one boy in the family = 3/4
