Two items are chosen from a lot containing twelve items of which four are defective, then the probability that at least one of the item is defective

Two items are chosen from a lot containing twelve items of which four are defective. Then the probability that atleast one of the item is defective

Two items are chosen from a lot containing twelve items of which four are defective . Then the probability that atleast one of the item is defective is …………..

Two items are chosen a lot containing 10 items of which 3 are defective,then the probability that at least one of them is defective:

If 2% of a given lot of manufactured parts are defective , then the probability that in a sample of 100 items has no defective is

If 2% of a given lot of manufactured parts are defective , then the probability that in a sample of 100 items has no defective is

A lot contains 15 items of which 5 are defective. If three items are drawn at random, find the probability that none of the three is defective. Do this problem directly.

A lot contains 15 items of which 5 are defective. If three items are drawn at random, find the probability that (i) all three are defective