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10 coins are tossed once .The probalilty of getting exactly eight heads is?
Wiki User
∙ 14y ago
The probability of getting 8 heads out of 10 tosses is (10C8)(1/2)^8 (1/2)^2 = 45 / 1024 = 0.0439.
It is assumed that the probability of getting a head in a single toss is 1/2.
10C8 = 10 x 9 / 1 x 2 = 45
Wiki User
∙ 14y ago
The probability of getting exactly eight heads when tossing 10 coins once can be found using the binomial probability formula. Assuming a fair coin, the probability of getting a heads is 1/2. Plugging in the numbers, the probability of getting exactly eight heads is (10 choose 8) * (1/2)^8 * (1/2)^2 = 45/1024, which is approximately 0.04395.
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How many ways could you get exactly 2 heads when 3 coins are tossed?
3
What is the probability that exactly two coins come up heads when four coins are tossed?
6/16 = 3/8
If four fair coins are tossed what is the probability of getting two tails?
50%
What is the probability of getting 2 tails if 2 fair coins are tossed if one of them is already a tail?
yellow
What is the probability of getting exactly 220 coins with head when you toss 400 coins?
It is 0.00540 approx.
If 3 fair coins are tossed what is the probability of getting exactly 2 tails?
The probability is 3/8 = 0.375
What is the probability of getting one head if 3 coins are tossed?
3/8 * * * * * That is the probability of getting EXACTLY 1H. The prob of getting one (or more) head is 7/8
How many ways could you get exactly 2 heads when 3 coins are tossed?
3
What is the probability that exactly two coins come up heads when four coins are tossed?
6/16 = 3/8
What is the probability of getting 2 tails if you tossed 3 coins?
1/2
What is the probability of getting 2 tails if 4 fair coins are tossed?
possible
If four fair coins are tossed what is the probability of getting two tails?
50%
If 3 coins are tossed simultaneously the probability of getting at least 1head is?
3/8
What is the probability of getting 2 heads when 2 coins are tossed?
The probability of tossing two heads in two coins is 0.25.
If 5 coins are tossed what is the probability of getting one winner?
The answer depends on what a winner is: 1 H?, a run of 3 H?If the winner is one H, the probability of getting exactly one winner - no more no fewer - is 5/32.
What is the probability of getting 2 tails if 2 fair coins are tossed if one of them is already a tail?
yellow
What is the getting one tail when two coins are tossed simultaneously?
It is the event that one of the two coins lands showing tails and the other shows heads.
