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What is the probability that exactly two times head are being tossed?
Wiki User
∙ 10y ago
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.
Wiki User
∙ 10y ago
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A coin is tossed 100 times how many times would you expect to get heads?
The probability of a heads is 1/2. The expected value of independent events is the number of runs times the probability of the desired result. So: 100*(1/2) = 50 heads
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 that 6 rolls of a fair die will show four exactly 5 times?
5 out of 36
What does square of probability explain?
If p is the probability that an event will happen once, then the probability that it will happen just twice is p2. The probability it will happen 3 times is p3. The probability it will happen at least once ( ie once or twice or three times ore more times is p + p2 + p3 + ... = p(1-p). For "or" you add probabilities, for "and" you multiply probabilities.
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.
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 three times find the probability of getting exactly 2 heads?
3 out of 8
A coin is tossed five times find the probability of getting exactly three heads?
Since a coin has two sides and it was tossed 5 times, there are 32 possible combinations of results. The probability of getting heads three times in 5 tries is 10/32. This is 5/16.
If a coin is tossed 5 times what is the probability of getting tails no more then 2 times?
The probability is 0.5The probability is 0.5The probability is 0.5The probability is 0.5
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
What is the probability that a coin that is tossed 10 times--- what is the probability of it landing on heads 10 times?
0
What is the probability of a coin tossed two times to get heads?
It is 3/4
What is the probability of getting three tails and a head when a coin is tossed four times?
The probability is 1/4
If a coin is tossed 5 times what is the probability it will land on heads?
There is a 50% chance that it will land on heads each toss. You need to clarify the question: do you mean what is the probability that it will land on heads at least once, exactly once, all five times?
If a coin is tossed for 30 times what is the probability of having 10 heads?
10 :)
What is the probability of getting 3 tails when a coin is tossed 4 times?
50%
A coin is tossed 10 times. What is the probability of getting at least one head?
Assuming that it is a fair coin, the probability is 0.9990
