One of two boxes contains 4 red balls and 2 green balls and the second box contains 4 green and two red balls. By design, the probabilities of selecting box 1 or box 2 at random are 1/3 for box 1 and 2/3 for box 2. A box is selected at random and a ball is selected at random from it. What is the probability it is green?
Added by Carmen M.
Step 1
In box 1, there are 2 green balls out of a total of 6 balls. So, the probability of drawing a green ball from box 1 is 2/6 = 1/3. In box 2, there are 4 green balls out of a total of 6 balls. So, the probability of drawing a green ball from box 2 is 4/6 = 2/3. Show more…
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