Twenty batteries will be put on the display. The types of batteries are: AAA, AA, C, D, and 9-volt. a. How many ways can we choose the twenty batteries? b. How many ways can we choose the twenty batteries but be sure that at least four batteries that are are 9-volt batteries? c. How many ways can we choose the twenty batteries but have no more than two batteries that are 9-volt batteries?
Twenty batteries will be put on the display. The types of batteries are: AAA, AA, C, D, and 9-volt. a. How many ways can we choose the twenty batteries? b. How many ways can we choose the twenty batteries but be sure that at least four batteries that are are 9-volt batteries? c. How many ways can we choose the twenty batteries but have no more than two batteries that are 9-volt batteries?
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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Twenty batteries will be put on the display. The types of batteries are: AAA, AA, C, D, and 9-volt.
a. How many ways can we choose the twenty batteries?
b. How many ways can we choose the twenty batteries but be sure that at least four
batteries that are are 9-volt batteries?
c. How many ways can we choose the twenty batteries but have no more than two batteries that are 9-volt batteries?
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