What is the probability that you would obtain a sum of 7 or a sum of 11 on the first roll? (Rolling two dice.)

Question

asked Nov 17, 2021 87.5k views

1 Answer

Kunruh · Answer 1 · 2021-11-21T02:33:22+0000

Answer:

2/9

Explanation:

Total outcome = 36

Sum of 7 = 6

Prob of sum of 7 = 6/36

Sum of 11 = 2

Prob of sum of 11 = 2/36

Prob of sum of 7 or 11 = 6/36+2/36

Prob of sum of 7 or 11 = (6+2)/36

Prob of sum of 7 or 11 = 8/36 = 2/9