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What is the probability of getting heads one-half N times when flipping a coin N times?
Wiki User
∙ 10y ago
If N is odd, the probability is 0.
If N is even, suppose N=2M
then the probability is 2MCM*(1/2)2M which approaches 0 as N (or M) increases.
For N = 10, Prob = 0.1762
For N = 20, Prob = 0.1254
For N = 30, Prob = 0.1026
For N = 80, Prob = 0.0630
Wiki User
∙ 10y ago
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What is the probability of flipping a quarter and getting heads and rolling a die and getting a 6?
The probability of flipping a quarter and getting heads is 1 in 2. the probability of rolling a die and getting 6 is 1 in 6.
What is the probability of flipping a coin 3 times and getting 3 heads?
The probability of flipping a coin 3 times and getting 3 heads is 1/2
What is the probability of getting exactly 2 heads by flipping 3 coins?
The probability is 0.375
The probability of flipping a coin twice and getting two heads is?
The probability of this is 50%. 2/4
The probability of flipping a coin three times and getting two heads is?
There are 8 permutations of flipping a coin 3 times, or of flipping 3 coins one time. They are, with the permutations of two heads bolded...TTTTTHTHTTHHHTTHTHHHTHHH... thus, the probability of flipping a coin 3 times and getting 2 heads is 3 in 8, or 0.375.
What is the probability of flipping 3 coins and getting all heads or tails?
The probabilty of you flipping 3 coins and getting all heads or tails is 0.125 or 1/8.
What is the probability of flipping a coin twice and getting two heads?
The probability is 25%. The probability of flipping a coin once and getting heads is 50%. In your example, you get heads twice -- over the course of 2 flips. So there are two 50% probabilities that you need to combine to get the probability for getting two heads in two flips. So turn 50% into a decimal --> 0.5 Multiply the two 50% probabilities together --> 0.5 x 0.5 = 0.25. Therefore, 0.25 or 25% is the probability of flipping a coin twice and getting heads both times.
What is the probability of flipping four coin's to get a head?
The probability of NOT getting heads is (1/2)4=1/16 Therefore the probability of getting heads is 1-1/16=15/16
What is the probability of getting at least 2 heads when flipping a coin 3 times?
.125
What is the probability of flipping a coin two times and getting two heads?
1/4
What is the probability of flipping a coin and getting heads 7 times in a row?
i got 1/941192
What is the probability of flipping four coins and getting four heads?
0.54 or 0.0625 or 1/16.
