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from the digits 0,1,2,3,4,5,6,7,8,9 find the number of
a) 4-digit numbers with repetition of digits
b) 4-digit numbers without repetition of digits
c) the number of odd 4-digit numbers with no repetition of digits
d) the number of even 4-digit numbers with no repetition of digits

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  1. We have done, or shown you how to do, several of these probability questions for you; yet you persist in not showing any work, and reposting old questions. If you are not willing to make an attempt at learning the subject, this is not a place for you to seek help.

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