Two dice are rolled. What is the probability of having both faces the same (doubles) or a total of 4 or 10? Roundto the nearest hundredth.
A) 0.28
B) 0.33
C) 0.06
D) 0.15

Question

Quizplus · Accepted Answer

The probability of rolling doubles (both faces the same) is 6/36 because there are 6 possible doubles (1-1, 2-2, 3-3, 4-4, 5-5, 6-6) out of 36 total outcomes. The probability of rolling a total of 4 is 3/36 (1-3, 2-2, 3-1), and the probability of rolling a total of 10 is also 3/36 (4-6, 5-5, 6-4). Adding these probabilities gives 6/36 + 3/36 + 3/36 = 12/36 = 1/3, which rounds to 0.33, not 0.28. My initial calculation was incorrect; the correct choice should have been B) 0.33, based on the correct calculation of probabilities.

Two Dice Are Rolled