There are 4 defective items in a lot consisting of 10 items. From this lot we select 5 items at random. The probability that there will be 2 defective items among them is

There are 6 defective items in a sample of 20 items, one item is drawn at random. The probability that it is a non - defective item is …………………. .

There are 6 defective items in a sample of 20 items. One item is drawn at random. The that it is probability a non-defective item 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:

Suppose that the probability that an item produced by a particular machine is defective equals 0.2. If 10 items produced from this machine are selected at random, the probability that not more than one defective is found is

A lot of 100 items contains 10 defective items. Five items selected at random from tht lot and sent to the retail store. The probalility that the store will receive at most one defective item is

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

There are 5% defective items in a large bulk of items. What is the probability that a sample of 10 items will include not more than one defective items?