Of the items manufactured by a certain process, 20% are defective. Of the defective items, 60% can be repaired.

a. Find the probability that a randomly chosen item is defective and cannot be repaired.

b. Find the probability that exactly 2 of 20 randomly chosen items are defective and cannot be repaired.

Answer :

Step 1 of 3:

Given, in a process of manufacturing, 20% of the items are defective. In that 20% defectives 60% items can be repaired.

The goal of the problem is

- We have to find the probability that a randomly chosen item is defective and cannot be repaired.

b) we have to find the probability that exactly 2 of 20 randomly chosen items are defective and

cannot be repaired.