blaster wrote:A box contains 4 red chips and 2 blue chips. If two chips are selected at random without replacement, what is the probability that the chips are different colors?
OA later
select 2 from 6 chips : 6!/2!4!=15blaster wrote:A box contains 4 red chips and 2 blue chips. If two chips are selected at random without replacement, what is the probability that the chips are different colors?
OA later
P(different colors) = P(1st chip is red and 2nd chip is blue OR 1st chip is blue and 2nd chip is red)
To satisfy the requirement, we must obtain either R-B or B-R. Thus, we need to determine:
