Math and Arithmetic
Statistics
Probability

What is the probability that a coin will land on tails 75 percent of the time if flip four times?

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For 4 coin tosses, there are 16 possible outcomes. Tails on 75% of 4 tosses is 3 times tails, and 1 time heads. This occurs in 4 of those 16 possibilities, so the probability is 4/16 = 1/4 (or 25%). But if the question is 'what is the probability that it's tails at least 75% of the time, then you have to add in the 1 where all 4 are tails, then you have 5/16 (or 31.25%).

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Related Questions

The probability is 0%. The result will be heads or it will be tails but it cannot be heads and tails.

The probability to get tails once is 1/2 (for a fair coin) The probability to get tails twice = the probability to get it once x the probability to get it a second time The probability to get tails 4 times in a row is (1/2)4=1/16 The probability to get tails n times in a row is (1/2)n=1/2n The same thing is also true for heads (same probability: 1/2 each time)

The probability of tossing a coin twice and getting tails both times is 1 in 4, or 25%. If you have already tossed a coin and had it land on tails, the probability that it will land on tails again the next time you toss it is 50%.

The probability of tossing a coin 5 times and getting all tails is:P(TTTTT) = (1/2)5 = 0.03125 &asymp; 3.13%

The probability of the coin flip being heads or tails is 100%.

It is 100%. The coin will result in heads or tails since there are no other possible outcomes.

The probability is 0.5The probability is 0.5The probability is 0.5The probability is 0.5

Since the probability of getting tails is 50% or 0.5, the probability of three tails would be 0.5*0.5*0.5=0.125 or 12.5 %

The probability of getting exactly seven tails if you flip a coin eight times is: P(7T1H) = 8&#8729;(1/2)8 =0.03125 &asymp; 3.1%

Each time you flip a coin, the probability of getting either heads or tails is 50%.

The probability of two tails on two tosses of a coin is 0.52, or 0.25.

That depends how many times you flip the coin.

The probability of Tails on the first toss is 0.5 .The probability of Tails on the second toss is 0.5 .The probability of Tails on the third toss is 0.5 .The probability of Tails on the fourth toss is 0.5 .The probability of all four is (0.5 x 0.5 x 0.5 x 0.5) = 0.0625 = 6.25%

The probability of each coin flip, independently, is 0.5 or 50%. The probability of getting one result (either heads or tails) four times in a row is 0.5 to the fourth power or 0.0625, which equals 6.25%

One hundred percent it you toss the coin eight times.

25% or 0.25 Probability of one tail is 0.50. Since two tails are independent events, the probability is 0.5 x 0.5 = 0.25

50%. there are only 2 choices heads or tails and that doesn't change no matter how many times you flip the coin

The probability of getting two tails when tossing a coin is zero, because the coin can only have one result. If, one the other hand, you toss the coin twice, then the probability of getting two tails is 0.25, i.e. the probability of one tail, 0.5, squared.

Since it is a certainty that a coin must land on either heads or tails, the probability must be 1.

None, since that would imply that in 18 cases the coin did not show heads or tails!