at a certain company, password must be formed 3-5 characters long and composed of the 26...

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Advance Math

at a certain company, password must be formed 3-5characters long and composed of the 26 letters of the alphabet, 10digits 0-9, and 14 symbols.

A. how many passwords are possible if repetition isallowed?

B. what is the probability that a password chosen hasat least 1 repeated character.

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