A jar contains 7 red marbles, numbered 1 to 7, and 11 blue marbles numbered 1 to 11. a) A marble is chosen at random. If you're told the marble is blue, 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 10 on it, what is the probability the marble is blue?
A jar contains 7 red marbles, numbered 1 to 7, and 11 blue marbles numbered 1 to 11. a) A marble is chosen at random. If you're told the marble is blue, 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 10 on it, what is the probability the marble is blue?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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A jar contains 7 red marbles, numbered 1 to 7, and 11 blue marbles numbered 1 to 11.
a) A marble is chosen at random. If you're told the marble is blue, 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 10 on it, what is the probability the marble is blue?
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