Sage-Tips

What is the probability that at least one head appears?

1063 in 1064
To find the chance of getting at least one heads if you flip ten coins you times 64 by 2 four times or by 16 once and then minus 1, this results in a 1063 in 1064 chance of getting at least one heads.

What is the probability of at least 1 tail?

1023 / 1024
We have to find the probability of getting at least one tail. The probability of getting at least one tail is equal to one minus the probability of all heads. Therefore, the probability of getting at least one tail is 1023 / 1024.

What is the theoretical probability of flipping a coin 7 times and getting tails every time?

1 in 128
With seven flips, we have 128 possibilities, with only one of these possibilities being a successful one (T-T-T-T-T-T-T). Thus, the probability of flipping seven tails in a row in seven flips is 1 in 128.

What is the probability of getting atleast 2 heads?

1/2
Answer: If you flip a coin 3 times, the probability of getting at least 2 heads is 1/2.

When a coin is tossed 7 times what is the number of possible outcomes?

If you are also interested in the actual order of the heads and tails, there are 2^7 = 128 different outcomes because each individual toss can lead to two possible outcomes — and because order matters, you need to multiply the possible outcomes of each individual toss with each other: 2*2*2*2*2*2*2 = 2^7.

What is the probability of flipping a coin 7 times and getting heads 7 times?

I know if you flip a coin 7 times, the odds of getting 7 heads in a row is 1 in 27 or 1 in 128.

What is the probability of tossing a coin 5 times?

Since it’s a fair coin, both heads (H) and tails (T) have probability p = 0.5. After tossing it five times, we have 2^5 = 32 different possible outcomes. This also considers the order in which they appear (which doesn’t matter to us). You can read “at least” also as probability = 1 – p (H=0) – p (H=1).

What is the probability of getting the head of the coin?

When a fair coin is tossed the probability of getting head is ½. To get probability that the head appears even no. of times , we have 0 or 2 or 4 or 6 as choices. So, we add all probabilities in order to meet the requirement.

What happens when 7 fair coins are tossed at one time?

When 7 fair coins are tossed at one time, the total no. of possible outcomes = 2^ (7) . Out of these outcomes, one of the favorable outcome to the event is {H H H H T T T} and this can be permuted among themselves in 7!/4! 3! = 35 no. of ways, giving out all the favorable cases for the happening of the event.

What is the probability of getting 4 heads and 3 tails?

Assuming all coins are fair ones – equal probability of giving heads and tails. When seven coins are tossed; number of possible outcomes = (2^7) = 128. Getting exactly four heads automatically implies getting exactly three tails as well. So, these are identical events and not different from one another.