Suppose a lot of 10 items has three defectives. Three items are chosen randomly with replacement of the item before another selection. Find the probability function f(x) for the random variable X...

Suppose a lot of 10 items has three defectives. Three items

are chosen randomly with replacement of the item before another

selection. Find the probability function f(x) for the random

variable X giving the number of defectives in the three

selections.

Answer Problem 3.1.2 if the items drawn are not replaced after

each selection.