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If a die is rolled 3 times what is probability of having a 5 appear at least twice?
Wiki User
∙ 14y ago
well, there are 216 possibilities, 1/6 x 1/6 x 1/6 = 1/216 so 216 possibilities. and there are 4 ways to get two or more fives, 155, 515, 551, and 555. so 4 out of 216 or 4/216, or 1/54. so there you go.
--- update ---
I disagree. There are 16 ways out of 216 possibilities, so the probability is 16/216 or 2/27. The ways can represent by x55, 5x5, 55x and 555, where x can be any of five numbers not equal to five.
--- actuary fl
Wiki User
∙ 14y ago
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A pair of dice are rolled find the probability at least one dice is a 4?
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If a die is rolled 3 times what is probability of getting an even number?
The probability of getting an even number on at least one of the 3 rolls is 7/8.
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It is 0.1962
What is the probability that a six is rolled exactly once if it is known that at least one six is rolled?
The answer depends on how many rolls. If there were n rolls, then the probability is n*(1/6)*(5/6)n-1/[1 - (5/6)n]
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If two dice are rolled what is the probability that their sum is at least 4?
3/16 Michigan Virtual says it is 11/12
