Question

How many combinations with repetition are allowed if n = 8 and r = 4?

Answer 1

Answer:

It would be 70

Not so sure

Answer 2

When the order of items matters, that's called a Permutation. Since we are allowed to repeat items, we us the following formula:

Number of possible Permutations =

${n}^{r} \\ \\ = {8}^{4} \\ \\ 4096$

Answer = 4096