Question

Suppose that a single die with 9 sides (numbered 1, 2, 3, ... , 9) is rolled twice. What is the probability that the sum of the two rolls equals 3

Answer 1

Answer:

2/81

Step-by-step explanation:

Probability is defines as the likelihood or chance that an event will occur.

Probability = expected outcome of event/total outcome.

Since a single die with 9 sides was rolled, the total event outcome will be 9*9 = 81

Expected outcome will be the event that the sum of the two rolls equals 3. The possible outcomes are {(1,2), (2,1)}. The expected outcome is 2

Probability that the sum of the two rolls equals 3 = 2/81