A single die is rolled twice. The 36 equally-likely outcomes afre shown to the right.Find the probability of getting two numbers whose sum is 8 .The probability of getting two numbers whose sum is 8 is 81.(Type an integer or a simplified fraction.)
Q. A single die is rolled twice. The 36 equally-likely outcomes afre shown to the right.Find the probability of getting two numbers whose sum is 8 .The probability of getting two numbers whose sum is 8 is 81.(Type an integer or a simplified fraction.)
Identify possible outcomes: First, we need to identify all the possible outcomes when rolling two dice that result in a sum of 8. The pairs are (2,6), (3,5), (4,4), (5,3), and (6,2). Each pair represents a unique outcome.
Count pairs for sum: Next, we count the number of pairs that sum up to 8. There are 5 pairs as identified in the previous step.
Determine total outcomes: Now, we need to determine the total number of possible outcomes when rolling two dice. Since each die has 6 faces, and each face can land in combination with any face of the other die, there are 6×6=36 possible outcomes.
Calculate probability: To find the probability of getting a sum of 8, we divide the number of favorable outcomes (sum equals 8) by the total number of possible outcomes. So, the probability P is P=Total number of possible outcomesNumber of favorable outcomes=365.