When a fair coin is tossed what is the probability of getting a head?

For example, the probability of an outcome of heads on the toss of a fair coin is ½ or 0.5. The probability of an event can also be expressed as a percentage (e.g., an outcome of heads on the toss of a fair coin is 50\% likely) or as odds (e.g., the odds of heads on the toss of a fair coin is 1:1).

When a coin is tossed the probability of getting the first head on the third toss is?

1/23
The 1/23 term is the probability of getting heads for the first time on the third toss, or the sequence TTH.

What is the probability of first a tail then a head?

There are 4 possible outcomes and 1 outcome with a head followed by a tail, HT. Therefore the probability is 1/4. 25\%. Thus there is a 1 in 4 chance of getting the combination H T, or 25\%.

When a fair coin is tossed?

A fair coin, when tossed, should have an equal chance of landing either side up.

When a fair coin is tossed total number of outcomes is?

two
When a coin is tossed, there are only two possible outcomes.

What is the probability that if a person is tossing a coin gets the first head on the 4th toss?

1/16
Example: In counting the number of heads in 4 coin flips, the probability that we get exactly one head is the probability that we get anyone of the following 4 outcomes: HTTT, THTT, TTHT, or TTTH. Each has probability 1/16, so the probability to get exactly one head in 4 flips is 1/16 + 1/16 + 1/16 + 1/16 = 4/16 = 1/4.

When a coin is tossed what are the possible outcomes?

two possible outcomes
When a fair coin is tossed then there are two possible outcomes: H(head), T(tail).

What is the probability that the coin will land heads on the first and tails on the last toss?

Suppose you have a fair coin: this means it has a 50\% chance of landing heads up and a 50\% chance of landing tails up. Suppose you flip it three times and these flips are independent. What is the probability that it lands heads up, then tails up, then heads up? So the answer is 1/8, or 12.5\%.

What is the probability of getting heads on the first toss?

The 1 / 2 term is pretty obvious, it’s the probability of the first toss being heads. The 1 / 2 3 term is the probability of getting heads for the first time on the third toss, or the sequence TTH. That sequence has a probability of 1 / 2 ∗ 1 / 2 ∗ 1 / 2.

How many times should you toss a coin to get head?

Let’s call the expected number of times you have to toss the coin X. The first time you toss a coin, there is a chance of 1/2 of it being head, and 1/2 of it being tails. If it is head, you are ready. If it is tails, nothing has changed. You still need to throw an expected number of X times to get head.

What is the value of X when we toss the coin?

When we toss the coin once, there are two possibilities: first toss is heads: In this case, the value of X will be 1. first toss is tails: In this case, we have lost one trial, and we are back to where we started from.

What is the expected number of attempts to get the head?

Now, if first is head, then probability is 1/2 and event number is 1. When first attempt is tails then one trial is lost now, then expected number of getting head is (1+x). Probability is 1/2. X =2.