Question: Probability involving permutations and combinations Abigail needs to create a four-digit password to access her voice mail. She can repeat some of the digits, but
Probability involving permutations and combinations

Abigail needs to create a four-digit password to access her voice mail. She can repeat some of the digits, but all four digits cannot be the same. Determine, to the nearest percent, the probability that her password will be greater than 6300
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