An urn has 11 balls that are identical except that 7 are white and 4 are red. A sample of 8 is selected randomly without replacement. What is the probability that exactly 6 are white and 2 are red? What is the probability that at least 6 of the balls are white

An urn has 11 balls that are identical except that 7 are white and 4 are red. A sample of 8 is selected randomly without replacement. What is the probability that exactly 6 are white and 2 are red? What is the probability that at least 6 of the balls are white

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

An urn has 11 balls that are identical except that 7 are white and 4 are red. A sample of 8 is selected randomly without replacement.
What is the probability that exactly 6 are white and 2 are red?

What is the probability that at least 6 of the balls are white?

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Expert Solution

Step 1

given data

7 white

4 red

_________

11 total balls

select 8 balls at random and without replacement.

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Solved in 2 steps

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