Question

2. What would be the probability that randomly choosing four states from the top 7 murder states would actually be the top 4 states for murders in the United States in exact correct decreasing order?

Answer 1

The probability would be 1 out of 840.

This is a permutation problem. You have to determine the number of ways for each choice and multiply them together.

For the first choice, there are 7 states, then 6, then 5, and finally 4 choice for 4th spot.

7 x 6 x 5 x 4 = 840