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What is the probability of rolling a sum of a 5 or a sum of a 7?
Wiki User
∙ 13y ago
On two 6-sided fair dice:
- Rolling a sum of 5: 4 out of 36, or 11.11%
- Rolling a sum of 7: 6 out of 36, or 16.67%
- Rolling a sum of either 5 or 7: 10 out of 36, or 27.78%
Here's why: Look at the dice as unique, (maybe one is red and one is blue). Then there are 36 different possible outcomes.
- The four that give a sum of 5: 1+4, 2+3, 3+2, 4+1.
- The six that give sum of 7: 1+6, 2+5, 3+4, 4+3, 5+2, 6+1
So there are 4 chances out of 36 (or 1 out of 9 = 11.11%) to get a sum of 5, and 6 chances out of 36 (or 1 out of 6 = 16.67%) to get a sum of 7. If you want either 5 or 7 as a sum, add the chances together to get 10 out of 36 (or 5 out of 18 = 27.78%)
Wiki User
∙ 13y ago
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What is the probability of rolling a sum of 7 and 11?
The answer depends on how many dice you are rolling and how many times.
What is the probability of rolling a sum of 10 or a sum that is an odd number when two number cubes are rolled?
The probability is 21/36 = 7/12
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 getting a multiple of 5 when rolling 2 dice?
The probability is 7/36
If 2 dice are rolled what is the probability of rolling a sum less than 7?
It is 15/36.
What is the probability of rolling a sum of 7 when rolling one die twice?
The probability is 1/6.
What is the probability to roll a sum of 7 with three die?
There are 216 permutations of three dice. Of these, 15 sum to 7. Therefore, the probability of rolling a sum of 7 with three dice is 15 in 216, or 5 in 72, or about 0.06944.111112113114115711612112212312471251261311321337134135136141142714314414514615171521531541551561611621631641651662112122132147215216221222223722422522623123272332342352362417242243244245246251252253254255256261262263264265266311312313731431531632132273233243253263317332333334335336341342343344345346351352353354355356361362363364365366411412741341441541642174224234244254264314324334344354364414424434444454464514524534544554564614624634644654665117512513514515516521522523524525526531532533534535536541542543544545546551552553554555556561562563564565566611612613614615616621622623624625626631632633634635636641642643644645646651652653654655656661662663664665666
What is the probability of rolling a sum of 7 and 11?
The answer depends on how many dice you are rolling and how many times.
What is the probability of rolling a sum which is a multiple of five?
There are 36 permutations of rolling two standard dice. Of them, four (1+4, 2+3, 3+2, and 4+1) sum to five, and three (6+4, 5+5, and 4+6) sum to ten. The probability, then of rolling a multiple of five is 7 in 36, or about 0.1944.
What is the probability of not rolling a sum of 7 three times in a row?
Possible outcomes for one cube = 6 .Possible outcomes for 2 cubes = 6 x 6 = 36 .Ways to roll a sum of 7 = 6 ways,1, 6 . . . 2, 5 . . . 3, 46, 1 . . . 5, 2 . . . 4, 3Probability of rolling a 7 on the first roll = 6/36 = 1/6 .Probability of rolling a 7 on the second roll = 6/36 = 1/6 .Probability of rolling a 7 on the third roll = 6/36 = 1/6 .Probability of rolling a sum of 7 three times in a row = (1/6 x 1/6 x 1/6) = (1/6)3 = 1/216 = 0.00463 = 0.463%Probability of not rolling a sum of 7 three times in a row = 1 - (probability of doing it) = 99.537%
What is the probability of rolling a sum of 11 with 2 dice?
The probability of rolling a sum of 11 with 2 dice is: P(11) = 1/18.For explanation see answer to question: "What is the probability of rolling 7 or 11 with 2 dice?".Read more: What_is_the_probability_of_rolling_7_or_11_with_2_dice
What is the probability of rolling a sum of 10 or a sum that is an odd number when two number cubes are rolled?
The probability is 21/36 = 7/12
What is the probability of rolling a sum of 7 with 2 dice?
Te probability of rolling a sum of 7 with two fair dice is 6 in 36, or 1 in 6, or about 0.1667.Of all the possible combinations of two dice, the sum of 7 has the highest probability, with the other combinations decreasing down to 2 and 12, with probabilities of 1 in 36, or about 0.0278.
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 getting a multiple of 5 when rolling 2 dice?
The probability is 7/36
If 2 dice are rolled what is the probability of rolling a sum less than 7?
It is 15/36.
What is the probability of getting a sum of 7 or 11 by rolling two dice?
There are 36 permutations of two dice. Of them, 6 have a sum of 7, (1+6, 2+5, 3+4, 4+3, 5+2, and 6+1) and 2 have a sum of 11 (5+6 and 6+5). The probability, then of getting a sum of 7 or 11 is (6 plus 2) in 36, or 8 in 36, or 2 in 9, or about 0.2222.
