The total combination of 3-coin is 4 if there are a total number of coins is 4 option third is correct.
A permutation is the number of different ways a set can be organized; order matters in permutations, but not in combinations.
We have:
Number of coin need to select = 3
Total number of coins = 4 (pennies, nickels, dimes, and quarters)
We can apply the combination formula to find the number of combination:
Total number of combination = C(4, 3)
[tex]= \dfrac{4!}{(4-3)!3!}[/tex]
= 4
Thus, the total combination of 3-coin is 4 if there are a total number of coins is 4 option third is correct.
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