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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 else can I help you with?
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 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 :)
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 of a coin tossed five times to get four heads?
It is 5/32 = 0.15625
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
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.
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 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?
What is the probability of a coin tossed two times to get heads?
It is 3/4
What is the probability that a coin that is tossed 10 times--- what is the probability of it landing on heads 10 times?
0
If a coin is tossed for 30 times what is the probability of having 10 heads?
10 :)
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
A coin is tossed 60 times It landed on heads 21 times what is the experimental probability of getting heads?
1/2
What is the probability of getting heads only once if a fair coin is tossed 4 times?
The probability of getting heads only once when a fair coin is tossed 4 times is 4/16 or 0.25. This is because there are 4 favorable outcomes where heads appears exactly once, out of the 16 possible outcomes.
What is the probability that I'll get heads on the next toss if I tossed a coin fifteen times and got heads twelve?
The odds are 50/50. A tossed coin does not have a memory.
