Math and Arithmetic
Statistics
Probability

# What is the probability of getting tails on all 7 tosses if a fair coin is tossed 7 times?

###### Wiki User

The probability of Tails on the first toss is 1/2.

The probability of Tails on the second toss is 1/2.

The probability of Tails on the third toss is 1/2.

The probability of Tails on the fourth toss is 1/2.

The probability of Tails on the fifth toss is 1/2.

The probability of Tails on the sixth toss is 1/2.

The probability of Tails on the seventh toss is 1/2.

The probability of all of them is (0.5 x 0.5 x 0.5 x 0.5 x 0.5 x 0.5 x 0.5) = (0.5)7 = 0.0078125

= 0.78125 %

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## Related Questions

### What is a probability of getting a two tails in first two chances if coin is tossed 10 times simultaneously?

The probability of getting two tails in the first two is 1/4. And it does not matter how many more times the coins are tossed after the first two tosses.

### What is the probability of getting both tails on two tosses of a coin?

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

### A coin is tossed 5 times find the probability that the 6th toss is a tail given tht the first 5 tosses were all tails?

The chance is 50%-50% that it will be heads or tails; this does not change regardless of the number of previous tosses and their results.

### What is the probability of getting tails twice in a row?

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%.

### What is the probability of getting at least 2 tails in 4 tosses of a fair coin?

The probablility of getting 2 tails in 4 tosses of a fair coin is most likely 50%, 2/4=1/2, or .50.

### If a coin is tossed 5 times what is the probability of getting tails no more then 2 times?

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

### If you had tossed 52 coins up in the air how many coins will land tails up?

The expected value is the number of tosses times the probability of tails, so: E(number of tails) = 52 * 1/2 = 52/2 = 26

### Was the outcome of getting heads or tails in the 20 tosses same as the probability ratio?

It depends on what variable the probability ratio was for! The random variable could have been the number of heads minus the number of tails, for example.

## Still have questions?

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