50 people at a party, 10 are married, --if two are chosen at random --what is the probability both are married.
Solution. We can think about this problem in the following way. As two are chosen at random from 50 people, there are C(50, 2)=50*49/2!=2450/2=1225 possible ways to select these two ...
The probability of people being married at a party is determined.