Solved: Suppose that Ann selects a ball by first picking
Chapter 6, Problem 6.3.4(choose chapter or problem)
Suppose that Ann selects a ball by first picking one of two boxes at random and then selecting a ball from this box. The first box contains three orange balls and four black balls, and the second box contains five orange balls and six black balls. What is the probability that Ann picked a ball from the second box if she has selected an orange ball?
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