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You flip a fair coin 10 times What is the probability that it lands on heads exactly 3 times?
Wiki User
∙ 10y ago
It is 10C3*(1/2)10 = 10*9*8/(3*2*1)*(1/1024) = 0.1172, approx.
Wiki User
∙ 10y ago
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If you toss a fair coin 10 times and it lands on heads 8 times what is the probability that it will land on heads?
Since it is a fair coin, the probability is 0.5
What is the probability is of getting 3 heads in a row if I toss the coin 10 times?
The probability of getting 3 or more heads in a row, one or more times is 520/1024 = 0.508 Of these, the probability of getting exactly 3 heads in a row, exactly once is 244/1024 = 0.238
A coin is flip 8 times and the probability that the result have exactly have three heads?
It is 0.1042
When a fair coin is tossed twenty times in a row what is the probability that you get exactly fifteen heads?
3/8ths
What is the probability of obtaining exactly 4 heads in a coin?
About a 1 in 16 chance of getting a coin to land on heads 4 times in a row.
If you toss a fair coin 10 times and it lands on heads 8 times what is the probability that it will land on heads?
Since it is a fair coin, the probability is 0.5
You toss a coin 5 times and it lands heads up each time what is the probability that it will lands heads the sixth toss?
1/2, or 50% since you are only asking what the probability of the last outcome is.
What is the probability is of getting 3 heads in a row if I toss the coin 10 times?
The probability of getting 3 or more heads in a row, one or more times is 520/1024 = 0.508 Of these, the probability of getting exactly 3 heads in a row, exactly once is 244/1024 = 0.238
If you were to flip a coin 4 times what is the probability it will land on heads the same number of times that it lands on tails?
50%
A coin is flip 8 times and the probability that the result have exactly have three heads?
It is 0.1042
A fair coin is flipped three times what is the probability that the coin lands heads each time?
7/8
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 8 times what is the probability that it land on heads exactly four times?
If p is the probability that any one toss lands on "heads", the probability that exactly 4 toss out of 8 lands on head is this: p^4 * (1-p)^4 * C(4,8) Where C(k,n) is an old notation for n! / ( k! * (n-k)! ) So C(4,8) = 8! / ( 4! * 4!) = 8*7*6*5 / 24 = 70 If your coin is well balanced, p is 50% and you get your answer: (0.5)^8 * 70 = 70/256 =~ 27,34%
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.
When a fair coin is tossed twenty times in a row what is the probability that you get exactly fifteen heads?
3/8ths
What is the probability of obtaining exactly 4 heads in a coin?
About a 1 in 16 chance of getting a coin to land on heads 4 times in a row.
When you toss a coin 5 times probability of getting exactly 2 heads?
2/10 --> 1/5
