Mathematics, 04.01.2021 22:40 jesuscruzm2020

What type of counting problem is this? A special safe lets you choose from 5 symbols for a 3-symbol-long pass code. You may enter a symbol any number of times. How many potential pass codes are there?
a. Permutation without repetition
b. Combination with repetition
c. Permutation with repetition
d. Combination without repetition

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