0
What is the probability of getting a total of three four times in a row when you role two dice?
Wiki User
∙ 14y ago
Number of possible outcomes with a roll of one cube = 6
Number of possible outcomes with a roll of two cubes = (6 x 6) = 36
Two possible ways to roll a three: 1 - 2 or 2 - 1
Probability of a 3 on the first roll = 2/36
Probability of a 3 on the second roll = 2/36
Probability of a 3 on the third roll = 2/36
Probability of a 3 on the fourth roll = 2/36
Probability of a 3 on all four rolls = (2/36 x 2/36 x 2/36 x 2/36) = (2/36)4 = 0.000009526 = 0.0009526% (rounded)
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is the probability of getting a sum of three every time if a pair of dice are rolled three times?
There are two possibilities for rolling three once, so the probability of this even is 2/36 or 1/18. Since each roll is an independent event, the total probability is: P(rolling three three times) = (1/18)3 = 1/5832
What is the probability of rolling 6 and four in backgammon three times in a row?
The answer depends on how many times in total the dice are rolled. As the total number of rolls increases, the probability rolling a 6 and 4 three times in a row increases towards 1.
What is the definition of experimental probability?
Experimental Probability: The number of times the outcome occurs compared to the total number of trials. example: number of favorable outcomes over total number of trials. Amelynn is flipping a coin. She finished the task one time, then did it again. Here are her results: heads: three times and tails: seven times. What is the experimental probability of the coin landing on heads? Answer: 3/10 Explanation: Amelynn flipped the coin a total of 10 times, getting heads 3 times. Therefore, the answer is: 3/10.
What is an example of experimental probability?
add me at eryn_faria@hotmail.com to learn all about math please add me for help Experimental Probability: The number of times the outcome occurs compared to the total number of trials. example: number of favorable outcomes over total number of trials. Amelynn is flipping a coin. She finished the task one time, then did it again. Here are her results: heads: three times and tails: seven times. What is the experimental probability of the coin landing on heads? Answer: 3/10 Explanation: Amelynn flipped the coin a total of 10 times, getting heads 3 times. Therefore, the answer is: 3/10.
When two dice are rolled what is the probability of getting a total of 27?
If they are normal dice, the probability is 0.
What are three ways to express the probability of an event that occurs 500 times out of 2000 total trials?
5/20, 25%, or .25
What is the probability of getting a total 2 when rolloing two dice?
It is 1/36.
Suppose that you roll a pair of standard 6-sided dice a total of 42 times. What is the probability that you will get a sum of 5 at least four times?
The probability of getting 5 on one toss of a pair is 1/9. The most probable number of fives you will get after 42 tosses is 4 or 5. Add the probabilities of getting 5 four, five, six, seven, eight etc times out of 42 tosses. By the time you get to 15 times, the probability will be very small and you can quit adding them up. The probability of rolling 5 four times is (1/9)^4*(8/9)^38*42!/(38!*4!) = 119,930*1.524*10^-4*1.138*10^-2 = 0.20803 The probability of rolling 5 five times is (1/9)^5*(8/9)^37*42!/(37!*5!) = 8.507*10^5*1.6935*10^-5*1.2804*10^-2 = 0.18447 I am not going to continue this because it would take half the night, but you get the idea. There is an easier way to do this that just occurred to me. It will give the same answer. Here it is: Add the probabilities of getting 5 zero, one, two or three times, and subtract that from 1. The probability of never getting five is (8/9)^42 = 0.007105 The probability of getting 5 only once is (1/9)*(8/9)^41*42 = 0.037304 The probability of getting 5 twice is (1/9)^2*(8/9)^40*(42*41*/2) = 0.095591 Now YOU compute the probability of getting 5 three times. Add that to the probabilities above and subtract the sum from one. You should end up with a number around 0.6. That will be the answer.
What is the probability of getting a number greater then 5 on a spinner?
The probability is(the total number of numbers on the spinner minus 5)/(the total number of numbers on the spinner)Another way to express the same probability is1 - 5/(the total number of numbers on the spinner)
Probability 7th class maths?
two dice are thrown once. write all the possible outcomes. find the probability of getting: (i) a total of 12 (ii) a total of 3 (iii) a total of 8
You roll six sided die three timeswhat is the probability that all three rolls will be a 1?
The probability that each roll will be a 1, is 1/6 (a sixth) because there is one outcome of interest (getting a 1) and 6 possible outcomes (6 numbers on the die).Probability rules mean that if you want the probability of getting outcome A and getting outcome B then the total probability is P(A) x P(B) where P(A) means the probability of getting outcome A).In short if you want P(A and B) then this is P(A) x P(B)Applied to this example if you want the probability of getting a 1 on each throw of the die (i.e. on all 3 throws) then the probability is given by:P(1 on all three rolls) = P(1 on first roll) x P(1 on second role) x P(1 on third role)P(1 on all three rolls) = 1/6 x 1/6 x 1/6P(1 on all three rolls) = 1 / 216
How do you find the prbability of getting something?
There a formula: Probability = No. of Cases in favour / Total no. of cases
