Question

A bag contains 4 white, 3 blue, and 5 red marbles. 1) find the probability of choosing 3 blue marbles in a row if the marbles are replaced. 2) find the probability of choosing a blue marble,then a red marble if the marbles aren't replaced. 3) find the probability of choosing 2 white marbles in a row if the marbles are not replaced.

Answer 1

.1/64 isprobability of choosing 3 blue marbles in a row if the marbles are replaced
2-.5/ probability of choosing a blue marble,then a red marble if the marbles aren't replaced44 is
3-1/11 is the probability of choosing 2 white marbles in a row if the marbles are not replaced