Question

You have a 10-sided dice with faces numbered 1-10.

Find P(rolling a number less than 2 or greater than 7).

Answer 1

2/5

Explanation:

Rolling a number less than two means that you roll a 1.

1/10 is the answer to less than 2

Roll a number greater than 7 means you roll 8 9 or 10 that's 3 out of 10

Answer

1/10 + 3/10 = 4/10 = 2/5