bag contains 7 red marbles, 5 white marbles, and 8 blue marbles. You draw 5 marbles...

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bag contains 7 red marbles, 5 white marbles, and 8 blue marbles.You draw 5 marbles out at random, without replacement. What is theprobability that all the marbles are red?

The probability that all the marbles are red is .

What is the probability that exactly two of the marbles arered?

What is the probability that none of the marbles are red?

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Solution Backup Theory Number of ways of selecting r things out of n things is given by nCr nrn r1 Values of nCr can be directly obtained using Excel Function Math Trig COMBINNumber Numberchosen Number is n Numberchosen is r 1a Probability of an event E denoted by PE nN 2 where n See Answer

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