Question

Under 20 21-30 31-40

Male 12 12 17

Female 13 16 21

If two people are selected at random, what is the probability they are both female?

Answer 1

There are a total of 41 males and 50 females. The probability of picking two females a row (if each can be picked only once) is (50/91)x(49/90)
= 0.2991