A jar contains 6 red marbles, numbered 1 to 6, 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 5 on it?
b. The first marble is replaced, and another marble is chosen at random. If you're told the marble has the number 1 on it, what is the probability the marble is red?

Question

02-03-2022
Mathematics

Answered

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A jar contains 6 red marbles, numbered 1 to 6, 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 5 on it?
b. The first marble is replaced, and another marble is chosen at random. If you're told the marble has the number 1 on it, what is the probability the marble is red?

Sagot :

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