On a single roll of a normal die the probability of getting a 7 is 0.
I do not add probabilities to anybody!
Empirical probabilities.
If the first roll is a three, it's impossible to get an eleven (the highest you can get is a 9), so the probability is 0. The way to get a sum of 7 is to add 3 and 4. The probability of getting a 4 on the second die is 1/6. Therefore, by adding the two probabilities of the outcomes (0 and 1/6), you get the answer: 1/6.
Things and numbers don't have probabilities. Situations and events that can happen have probabilities.
This is a Binomial Probability Distribution, with number of trials n=7, r = 4, 5, 6, & 7 (at least 4 is 4 or more), and probability p is 1/2 or 0.5. The related link gives the binomial probabilities and the values, which are added together. The values for r = 4, 5, 6, & 7 are 0.273, 0.164, .055, .008. These add to 0.5, so the probability of getting at least 4 heads with a coin tossed 7 times is 0.5 or 50%.
The experiment is undefined. On a single roll of eight or more normal dice the probability of getting a sum of 7 is 0.
why did you rape one?
I do not add probabilities to anybody!
Empirical probabilities.
The one digit prime numbers are 2, 3, 5 and 7. The probabilities of getting these numbers are as follows:P(X=2) = 1/36P(X=3) = 2/36P(X=5) = 4/36P(X=7) = 6/36Adding these probabilities up, the probability that Randy will roll one of these numbers is 13/36.
Sum of all probabilities is 1.
Statistical Probabilities was created on 1997-11-22.
If the first roll is a three, it's impossible to get an eleven (the highest you can get is a 9), so the probability is 0. The way to get a sum of 7 is to add 3 and 4. The probability of getting a 4 on the second die is 1/6. Therefore, by adding the two probabilities of the outcomes (0 and 1/6), you get the answer: 1/6.
The sum of the probabilities of all possible outcomes is 1.
False
Things and numbers don't have probabilities. Situations and events that can happen have probabilities.
The fact that probabilities are proportions means that they are less than or equal to 1.