Question: A jar contains 4 red marbles numbered 1 to 4 and 12 blue marbles numbered 1 to 12 a A marble is chosen at random

A jar contains 4 red marbles numbered 1 to 4 and

A jar contains 4 red marbles numbered 1 to 4 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 2 on it b The first marble is replaced and another marble is chosen at random If you re told the marble has the number 7 on it what is the probability the marble is red

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