Question

a) show how the
permutation formula can be used to find the answer and b) write a sentence to explain the
meaning of the answer for the situation.
1. To register for online banking services at a local credit union, you need to select a four-digit
personal identification number, or pin code. The digits cannot be repeated. How many ways
are there to arrange four digits out of the numerals 0 through 9 to create a code?

Answer 1

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