SOLUTION: A jar contains 5 red marbles, numbered 1 to 5, and 12 blue marbles numbered 1 to 12. a) A marble is chosen at random. If you're told the marble is red, what is the probability t

Question 1200238: A jar contains 5 red marbles, numbered 1 to 5, and 12 blue marbles numbered 1 to 12.
a) A marble is chosen at random. If you're told the marble is red, what is the probability that it has the number 4 on it?

b) The first marble is replaced, and another marble is chosen at random. If you're told the marble has the number 11 on it, what is the probability the marble is red?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
a) Since you know the marble is red, there are 5 possible choices with one of them being 4.

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b) Red marbles are numbered 1 to 5 so Red 11 is not possible.

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