Question

Four letters are chosen at random from the letters A, B, I, K, N, O, and T. What is the size of the sample space of this experiment? Assume that the order of the letters matters. That is, ABIK is different from BAIK.

Answer 1

The size of your sample space would be 840 or option c.

Explanation:

I just took the test and got it right.

Answer 2

Since order matters this would be a permutation
7 P 4
There are 840 unique possibilities