Question

James counts the hair colors of the 22 people in his class, including himself. He finds that there are 4 people with blonde hair, 8 people with brown hair, and 10 people with black hair. What is the probability that a randomly chosen student in the class does not have red hair? Explain.

Answer 1

There are NO red-haired students, so the prob of a student picked to
have red hair = 0/22 = 0
So the prob(not read hair ) = 1 - 0 = 1