February 21, 2017

Homework Help: math

Posted by gary on Sunday, January 15, 2012 at 11:54am.

(1) A bag contains 3 red marbles and 5 blue marbles. Jake will choose 2 marbles without looking. What is the probability that he will choose a blue marble followed by a red marble?

(2) Suppose Jake wants to pick a third marble from the set in question 1. He has already picked a blue marble and then a red one . What is the probability that the third marble will be red?

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