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If you roll two fair dice what is the probability a three or six will appear?
Probability of rolling a 3 is 2/36 & the probability of rolling a 6 is 5/36; probability of rolling a 3 or 5 is 2/36 + 5/36 = 7/36.
What is the probability of rolling a 3 or 5 on a die?
a 2 out of 6 probability
Two standard six-sided dice are rolled what is the probability of rolling a two on at least one of the dice?
The probability is 11/36. There are 36 possible outcomes, but 25 of these don't involve a 2 on either die. The way to answer this is to ask what is the probability of not rolling a 2 on either die and subtract this from one. The probability of not rolling a 2 with the first die is 5/6. It is of course also 5/6 chance of not rolling a 2 with the second die. So we multiply the probabilities and subtract from 1. 1 - (5/6 * 5/6) = 1 - (25/36) = 11/36.
What is the probability of not rolling sum of 6 with two fair dice?
The probability of not rolling a sum of six with two fair dice is 1 minus the probability of rolling a sum of six. There are 36 permutations of rolling two dice. Of these, five sum to six, 1+5, 2+4, 3+3, 4+2, and 5+1. The probability, then of rolling a sum of six is 5 in 36. The probability, then of not rolling a sum of six is 31 in 36, or about 0.8611.
What is theoretical probability of not rolling a 2?
5 out of 6 or 83.333%
