# Chapter 4 - Section 4.4 - Intersection of Events and the Multiplication Rule - Exercises - Page 155: 4.47

a. P(A) = 0.36 P(B|A) = 0.87 P(A and B ) =$P(A) \times P(B|A)$ $= 0.36 \times 0.87$ =0.3132 b. P(B) = 0.53 P(A|B) = 0.22 P(A and B ) =$P(B) \times P(A|B)$ $= 0.53 \times 0.22$ =0.1166

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