Question

James counts the hair colors of the 22 people in his class including himself he finds that there are 4 people with blond and 8 people with brown hair and 10 wit black hair what is the probability that a randomly chosen student in the class does not have red hair

Answer 1

since it's 22 including James, you want to use 23 as the whole
4 colors: blonde, brown, black, and red
we have the number for 3 of them which adds to 22 (4+8+10).
this means 22 people do NOT have red hair.