The access code for a cars security system consists of four digits. Each digit can be any
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The access code for a car’s security system consists of four digits. Each digit can be any number from 0 through 9.
How many access codes are possible when 1. each digit can be used only once and not repeated?
2. each digit can be repeated?
3. each digit can be repeated but the first digit cannot be 0 or 1?
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Related Book For
Elementary Statistics Picturing The World
ISBN: 9781292260464
7th Global Edition
Authors: Betsy Farber, Ron Larson
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