Question

No work needed, just need answer please.

1. You roll two number cubes. Find the probability that the sum of the cubes is 5 or less. Write as a decimal and round to 3 decimal places, or write as a percentage and round to one decimal place.

2. You roll two number cubes. Find the probability of the sum of the cubes being prime. Write as a decimal and round to 3 decimal places, or write as a percentage and round to one decimal place.

Answer 1

1 is 27.8%

2 is 41.7%

Explanation:

To calculate 1 there is a 10/36 chance (2, 3, 4, 5 out of possible roles of 2 - 12)

To calculate 2 there is a 15/36 chance (2, 3, 5, 7, 11 are prime)