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.
My answer is that the probability is 0 because there is no one in the class with red hair.
Is this the correct answer?
3 answers
Yes.
I disagree
It asked for the prob that a person does NOT have red hair.
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
It asked for the prob that a person does NOT have red hair.
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
8 4/3 = 8 8-8=0 0