Defective components: A lot of 9 components contains 4 that

Last updated: 7/23/2022

Defective components: A lot of 9 components contains 4 that are defective. Two components are drawn at random and tested. Let A be the event that the first component drawn is defective, and let B be the event that the second component drawn is defective. Write your answer as a fraction or a decimal, rounded to four decimal places. (a) Find P (4). (b) Find P (B|A). (c) Find P (A and B). (d) Are A and B independent? Explain.