# ID Cards One company’s ID cards consist of 5 letters

## Problem 41CQ Chapter 4

Elementary Statistics: A Step By Step Approach | 9th Edition

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Elementary Statistics: A Step By Step Approach | 9th Edition

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Problem 41CQ

ID Cards One company’s ID cards consist of 5 letters followed by 2 digits. How many cards can be made if repetitions are allowed? If repetitions are not allowed?

Step-by-Step Solution:

Step 1 of 2:

It is given that a company’s ID cards consists of 5 letters followed by 2 digits.

We need to find the number of cards possible if repetition of letters and digits are allowed.

Also, we need to find the number of ID cards if repetition is not allowed.

Step 2 of 2

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ID Cards One company’s ID cards consist of 5 letters

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