Question

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
In a furniture manufacturing plant, a customer survey indicates that blemishes in the finish are a major concern. The table shown below displays a quality manager's probability assessment of the number of defects in the finish of new furniture.

Number of Defects	0	1	2	3	4	5
Probability	0.34	0.25	0.19	0.11	0.07	0.04

Let A be the event that there is at least one defect and let event B be that there is at most three defects. Which of the following statements is true?

• A. P(B) = 0.89

• B. P(A ∪ B) = 0.96

• C. P(A) = 0.34

• D. P(A ∩ B) = 0.5

Answer 1

Refering to the image attached , only statements A and D are correct ( D is close to our answer) .