Question

a distribution center receives shipments from three different factories in quantities of 50, 40 , and 25. three times a product is selected at random. what is the probability that all three products came from the 3rd factory. find probability that none of three products came from third factory

Answer 1

There are 50 + 40 + 25 = 115 total items.

You are asked for the chance that 3 selections in a row come from the portion of items from the 3rd factory, so each selection is basically your chance of picking one of 25 items out of a full group of 115 items.

Answer 2

so how do i figure out the probability that none of the three products will come from the third factory