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Statistics what is the probality that on five rolls of a fair die you roll three or more 1s?
Wiki User
∙ 14y ago
Since there are 6 numbers (1-6) on each die, and you're rolling it 5 times, the total number of possibilities is 65. You now have to find out, out of the total, how many possibilities fill your requirements. For 5 rolls of one the chance is 1/65. There are 5 possible sets of rolls where you'll get 4 1s (4 1s and a 2, 3, 4, 5, or 6). Lastly there are 25 possible sets of rolls where you'll get 3 1s (3 1s and a 2 and 2 or a 2 and 3 or a 2 and 4 etc). so adding up all the possibilities that is 31/65. That is a percentage of .4% or 4 out of 1000 rolls of all the dice you will get 3, 4, or 5 1s. Sounds like a yahtzee question.
Wiki User
∙ 14y ago
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What is the probability that 6 rolls of a fair die will show four exactly 5 times?
5 out of 36
What is the probability of getting heads at least once if a fair coin is flipped three times?
7/8
What does fair means in math term?
One way of describing a fair trial in statistics is one in which the probability of each outcome is what might be expected on theoretical grounds. A coin, that can only land on two faces, is equally likely to land on either one. A cubic die that is equally likely to show any one of its six faces and so on.
If you have 3 fair casino dice and throw all three at the same time each time how many different outcomes are possible?
6 outcomes for each die and so 6x6x6 outcomes for all three
What is the probability of obtaining 4 ones in a row when rolling a fair six sided die?
The following is the probability of obtaining 4 ones IN THE FIRST FOUR rolls of a fair die. Pr(4 1's) = Pr(1)*Pr(1)*Pr(1)*Pr(1) since the events are independent. Pr(4 1's) = Pr(1)4 = (1/6)4 = 1/1296 = 0.000772
What is the probability that 12 rolls of a fair die will show three ones?
It is approx 0.1974
What is the probability of rollling a 5 3times ina row?
With a fair die, it is 1/216 in three rolls, but the probability increases to 1 (a certainty) as the number of rolls is increased.
What is the probability that 6 rolls of a fair die will show exactly three fives?
The probability of getting three fives in the first three rolls and non-fives in the next three rolls is; P(5,5,5,N5,N5,N5) = 1/6 x 1/6 x 1/6 x 5/6 x 5/6 x 5/6 = 0.002679... The number of different order in which the fives can come out is given by; 6C3 = 6!/[3!∙(6-3)!] = 20 So the probability that in 6 rolls of a fair die exactly three fives (in any order) will come out is; P(three fives any order) = (20)∙(1/6)3∙(5/6)3 = 0.05358... ~ 5.4%
If a ball rolls foul then hits right corner of 1st base then rolls in after 1st base is it fair or foul?
As soon as the ball touches first base, it is a fair ball, regardless of what happens after that.
If a batter hits a ball and it initially rolls into foul territory but then rolls into fair territory before first base where it is fielded is it a fair ball?
Yes, it would be fair as long as it is fielded before first or third base or comes in contact with the base.
What is the probability of throwing a sum of 15 on three rolls of a fair die if the first roll was a 4?
Rolling a sum of 15 on three rolls of a die, when the first roll is a 4, is the same as rolling a sum of 11 on the second and third roll. The probability of rolling 11 on two dice is 3 in 36, or 1 in 12.
What is the probability that 14 rolls of a fair die will show 3 ones?
It is 0.0227
If a Batter hits a baseball and it bounces off home plate and then rolls into fair territory is it foul?
It would be considered a fair ball.
What is the probability of rolling 3 on two consecutive rolls of a fair dice?
1 in 36.
What is the probability that 15 rolls of a fair die will show 5 fives?
If the die is fair, the answer is 3003/32768 = 0.0624 or approx 1 in 16.
In baseball if a ball is picked up by the fielder while it is on the foul line before it reaches 3rd base it is a fair ball?
Yes, the entire line is in fair territory.
Was the three fifth compromise fair?
the three fifths compromise was not fair
