There are 50000 people at a stadium watching a soccer match

There are 50,000 people at a stadium watching a soccer match, and 40,000 of them are male. If 2 people are chosen at random, what is the probability that both of them are male? Please show detailed work.

Solution

There are 50,000 people at a stadium watching a soccer match, and 40,000 of them are male. If 2 people are chosen at random, what is the probability that both of them are male? Please show detailed work.

probability of choosing one male = 40000/50000 =0.8

probability that both of them are male = 0.8*0.8 = 0.64

The required P=0.64