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What is the probability that exactly two times head are being tossed?
The answer depends on how many times the coin is tossed. The probability is zero if the coin is tossed only once! Making some assumptions and rewording your question as "If I toss a fair coin twice, what is the probability it comes up heads both times" then the probability of it being heads on any given toss is 0.5, and the probability of it being heads on both tosses is 0.5 x 0.5 = 0.25. If you toss it three times and want to know what the probability of it being heads exactly twice is, then the calculation is more complicated, but it comes out to 0.375.
What is the probability of getting heads at least once if a fair coin is flipped three times?
7/8
Is it true that the probability of rolling a six with a fair die five times in a row is?
The probability of rolling a six with a standard die five times in a row is (1 in 6)5 which equals 1 in 7776 or about 0.0001286.
Fair coin is tossed 11 times What is the probability that a Exactly 9 heads appear b At least two heads appear c At most 8 heads appear?
Prob(Exactly 9 Heads) = 0.0269 Prob(At least 2 Heads) = 0.0327 Prob(At most 8 Heads) = 0.9673
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
A fair dice has 4 faces numbered 1 to 4 What is the probability of rolling a 2 exactly 3 times in 10 rolls of the die?
The probability is 0.2503
A fair die is rolled 9 times compute the probability that a one appears exactly once?
The probability of a one being rolled in a fair die is 1 in 6, or 0.1666... . The probability of a one not being rolled is 5 in 6, or 0.8333... . The probability, then, of exactly one one being rolled in nine rolls is 1 in 6 times 5 in 6 to the 8th power, or about 0.0388.
What is the probability of getting exactly three heads when you flip a coin four times?
If it is a fair coin, the probability is 1/4.If it is a fair coin, the probability is 1/4.If it is a fair coin, the probability is 1/4.If it is a fair coin, the probability is 1/4.
When a fair coin is tossed twenty times in a row what is the probability that you get exactly fifteen heads?
3/8ths
A fair coin is tossed ten times in a row. What is the probability that heads comes up exactly five times?
it is a fair chance so 1/2 :P
If you roll a fair six-sided die 1000 times Out of 1000 rolls how many times do you think the die would come up even?
If you roll a fair six-sided die 1000 times the die would come up even about 500 times. It will not be exactly 500 times, due to random probability, but it will be close. The more times you roll it, the ratio of even to odd will come closer and closer to the theoretical probability of 0.5.
What is the probability that 14 rolls of a fair die will show 3 ones?
It is 0.0227
You toss a fair coin 5 times and get 5 consecutive heads. What is the probability of tossing a head on the next toss?
If it is a fair coin, the probability is exactly 50%. The coin has no memory of what it did in the last flip. ■
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.
A fair coin is tossed three times find the probability of getting exactly 2 heads?
3 out of 8
In an experiment Qaysar rolls a fair sided dice 20 times and gets 5 sixes what is the theoretical probability of getting a six?
1/4? ...
What is the probability that 12 rolls of a fair die will show three ones?
It is approx 0.1974
