Question

Try It! 2 opens COL A student goes to the library. Let events V = the student checks out a video and D the student checks out a DVD. Suppose that P(V) = 0.40, P(D) 0.30 and P(V AND D) 0.20. Find P(VID) Formula for Conditional Probability A) 0.60 B) 0.67 P(A AND B) P(B) C) 0.75 P(AIB) = D) 0.50

Answer 1

1. P(V|D) = P(V and D) / P(D)

0.2 -0.67 0.3

ans-> B. 0.67

2. P(G and O)

= P(a green marble and odd numbered)

= P({G1, G3})

2 10

0.2

ans-> D) P(G and O) = 0.20