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What is the probability of rolling a composite number with one roll of a die?
Wiki User
∙ 14y ago
A composte number is any number that is not prime.
The numbers 1, 2, 3, 4, 5 and 6 appear on a die.
2, 3 and 5 are prime numbers; and one 1 is niether prime nor composite (unit).
Therefore, 4 and 6 are composite. So the probability or rolling a composite number is 1/3 (2/6).
Wiki User
∙ 14y ago
Tatum Cravens
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Find the probability of rolling a 2 on a number cube and then an even number on two consecutive rolls of a number cube?
1/6,3/6 ----------------------------------------------------------------------------------------------------- The probability of rolling a 2 is: P(2) = 1/6 The probability of rolling an even number is: P(even) = 1/2 The result on the second roll is independent of the result in the first roll. The probability of rolling a 2 and then rolling an even number is: P(2,even no.) = (1/6) ∙ (1/2) = 1/12 = 0.08333... ≈ 8.33%
What is the theoretical probability of rolling a 5 on a number cube if it is rolled 300 times?
The theoretical probability of rolling a 5 on a standard six sided die is one in six. It does not matter how many times you roll it, however, if you roll it 300 times, the theoretical probability is that you would roll a 5 fifty times.
If you roll a number cube twice what is the probability of rolling a 6 and a 2?
Assuming that a dice roll is purely random, there is a 1 in 6 probability of landing on any number. Since the second roll depends on the probability of the first, they factor together: First Roll: 1/6 Second Roll: (1/6)(1/6) = 1/36 If you were rolling both dice at once, however, the math would be completely different.
What is the probability of rolling a sum of 8 on at least one of two rolls of a pair of number cubes?
The probability of rolling a sum of 8 on one roll of a pair of dice is 5/36.The probability of not rolling a sum of 8 on one roll of a pair of dice is 31/36.The probability of rolling a sum of 8 twice on two rolls of a pair of dice is(5/36)(5/36) = (5/36)2 .The probability of rolling first a sum of 8 and then rolling a sum that is not 8 on thesecond roll is (5/36)(31/36).The probability of rolling a sum that is not 8 on the first roll and rolling a sum of 8in the second roll is (31/36)(5/36).So The probability of rolling a sum of 8 at least one of two rolls of a pair of dice is(5/36)2 + (5/36)(31/38) + (31/36)(5/36) = 0.258487654... ≈ 25.8%.
Suppose you roll one die find the probability of not rolling an even number?
Not even is odd. Odd is 1,3,& 5 which is 1/2 of the numbers on the die. Therefore the probability of not rolling an even number is 1/2 or 0.5.
What is the probability of rolling a composite number with one roll of a number cube?
The composite numbers on an ordinary cube are 4 and 6 so the probability of rolling a composite is 2/6 = 1/3
What is the probability of rolling a composite number with one roll of a dot cube?
It is 1/3.
What is the probability of rolling a 7 with one roll of a standard number cube?
The probability of rolling a seven with one roll of a standard number cube is zero.
When rolling 1 dice what is the probability of rolling number 4?
It is 1 (a certainty) if you roll it often enough. For a single roll of a fair die, the probability is 1/6.
If you roll a fair six sided number cube. What is the probability of rolling and eight?
The probability is 0.
What is the probability of rolling a 5 on a roll of a single number cube?
The probability of rolling a 5 on a roll of a single number cube is 1/6 (0.1666) as there is only one number 5 on a total of 6 sides on the cube.
What is the probability of rolling a prime number with one roll of a number cube?
1/6
What is the probability of rolling a 3 or a 4?
2/6 or 1/3 or 0.3333.
What is the probability of rolling a prime number on one roll of a die?
3/6
What is the probability of rolling a number that is greater than 3 on a roll of a die?
It is 0.5
What is the probability of rolling a 7 with one roll of standard number cube?
The probability is 0.The probability is 0.The probability is 0.The probability is 0.
What is the probability of rolling an even with one roll of a numbers cube. express the probability as a decimal.?
What is the probability of rolling an even with one roll of a numbers cube.
