How many times are you expected to flip a fair coin to get 3 heads in a row?

So it takes 14 tosses to get 3 heads in a row, then 30 tosses to get 4 heads in a row, and this grows exponentially in the number of consecutive tosses.

How many outcomes are there for 3 coin flips?

The sample space of a sequence of three fair coin flips is all 23 possible sequences of outcomes: {HHH,HHT,HTH,HTT,THH,THT,TTH,TTT}.

What is the probability of flipping a coin 3 times and getting 3 heads?

0.125
Answer: If you flip a coin 3 times the probability of getting 3 heads is 0.125.

What is the expected number of flips?

The expected value of the number of flips is the sum of each possible number multiplied by the probability that number occurs. So, E(# of flips)=∑∞n=1n12n.

What’s the expected number of coin flips until you get two heads in a row What’s the expected number of coin flips until you get two tails in a row?

6
If the first flip is a heads and second flip is also heads, then we are done. The probability of this event is 1/4 and the total number of flips required is 2. Solving, we get x = 6. Thus, the expected number of coin flips for getting two consecutive heads is 6.

How many outcomes are there when flipping a coin?

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

What is the total possible outcomes?

Vocabulary Language: English ▼ English

Term	Definition
Outcome	An outcome of a probability experiment is one possible end result.
Total Outcomes	In probability, the total outcomes are the total number of possible outcomes for the probability experiment.

When flipping 5 coins how many sequences have exactly 3 heads?

In this case we are flipping 5 coins — so the number of possibilities is: 2 x 2 x 2 x 2 x 2 = 32.