A number cube with sides labeled 1-6 is rolled two times and the sum of the numbers that end face up is calculated. What is the probability that the sum of the numbers is 9?
Probability is the likelihood or chance that an event will occur. The probability that the sum of the numbers is 9 is 1/9
Probability is the likelihood or chance that an event will occur. Mathematically;
Probability = expected/total outcome
If a number cube with sides labeled 1-6 is rolled two times, then the total outcome is 36.
The set of outcomes that gives a sum of 9 are:
E = {(3, 6), (6, 3),(4, 5),(5, 4)}
n(E) = 4
Pr (sum is 9) = 4/36 = 1/9
Hence the probability that the sum of the numbers is 9 is 1/9
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