A box contains 5 blue chips and 11 red chips. A person selects two chips without replacement, find the probability of selecting 2 blue chips?
So in total there is 16 chips. For the first selection (selecting only one chip at a time) the probability would be 5/16. Since this is without replacement, we are now missing one chip (the blue one) so the second probability would be 4/15. Then multiply the two probabilities to get the final one (don’t forget to simplify): 1/12