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bag contains 7 red marbles, 10 white marbles, and 10 blue marbles. You draw 3 marbles out at random, without replacement. What is the probability that all the marbles are red?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

A bag contains 7 red marbles, 10 white marbles, and 10 blue marbles. You draw 3 marbles out at random, without replacement. What is the probability 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 are red?
The probability that exactly two of the marbles are red is________.

What is the probability that none of the marbles are red?
The probability of picking no red marbles is________.

Answer the blanks.

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