# Seventeen percent of U.S. residents are in their twenties. Consider a group of seven U.S. residents selected at random. Find the probability that at least four of the people in the group are in their twenties.

Question
Seventeen percent of U.S. residents are in their twenties. Consider a group of seven U.S. residents selected at random. Find the probability that at least four of the people in the group are in their twenties.