Question

Greg rolled two dice 50 times. Each time, he added the numbers on the top faces. His results are shown. Sum of the number Number of rolls 2-1 3-4 4-3 5-6 6-7 7-10 8-7 9-5 10-4 11-2 12-1 Total 50 What percentage of the rolls resulted in a sum of 7?

Answer 1

20%

Explanation:

If he rolled the dice 50 times and got the following result

Sum of the number-Number of rolls

2-1

3-4

4-3

5-6

6-7

7-10

8-7

9-5

10-4

11-2

12-1

What percentage of the rolls resulted in a sum of 7?

Percentage of the rolls that resulted in a sum of 7 = 100% × (number of times the sum of 7 showed up)/(total number of rolls)

From the data presented above,

number of times the sum of 7 showed up = 10

total number of rolls = 50

Percentage of the rolls that resulted in a sum of 7 = 100% × (10/50) = 20%