A box of parts contains 8 good items and 2 defective items I

A box of parts contains 8 good items and 2 defective items. If 2 are selected at random with replacement, - that is, the first item is replaced before the second is drawn - find the probability that both items are defective.

Solution

There are 2 defective items and total 10 items. Therefore:

P(defective and defective) = (2/10)(2/10) = 0.04