A lot of 1000 components contains 300 that are defective. Two componentsare drawn at random and tested. Let A be the event that the first componentdrawn is defective, and let B be the event that the second component drawnis defective. Find P (B|A).

299/999

Step-by-step explanation:

Total component = 1000

Number of defective components = 300

Let A be the event that the first component drawn is defective

Let B be the event that the second component drawn is defective

P (B|A) = P (A and B) / P (A)

P (A) = 300/1000 = 3/10

P (A and B) = P (A) * P (B)

P (B) = P (A and B) / P (A)

P (B|A) = P (B)

P (B) = 299/999

P (B|A) = 299/999