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In an office, say your personal code to use the photo copy machine is the last four digits of your social security number.

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In an office, say your personal code to use the photo copy machine is the last four digits of your social security number.

a). If 100 people share that copier, what is the probability that at least two people have the same code?

b). Same question with 150 people.
in Mathematics by Platinum (101k points) | 284 views

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