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What is the probability that three coin flips will have at least one head?
Pr(3 flips at least one H) = 1 - Pr(3 flips, NO heads) = 1 - Pr(3 flips, TTT) = 1 - (1/2)3 = 1 - 1/8 = 7/8
What is the theoretical probability of getting two tails?
The probability of getting two tails is 1/4. The probability of something happening is the answer to the question, "What fraction of the time will this happen?" It is the number of ways it can happen, out of all the different things that can happen. With two coin flips, these are all the things that can happen H H H T T H T T There is one way in which you can get two tails, out of four possible things that can happen. One out of four, or 1/4.
What is the probability of flipping a coin a tail on the first and a head on the second or a head on the first and a tail on the second?
Two flips can have four possible results:T - TT - HH - TH - HThe question defines 'success' as either H-T or T-H.Two successes out of four possibilities = probability of 2/4 = 1/2 = 50% .
Kellie flips a dime and then a quarter How many results are possible?
4: h/h, h/t, t/h & t/t
How do you find the sample space of an experiment where you flip a coin 6 times and note the number of heads?
The sample space consists of all the possible outcomes. A flip of a coin has 2 outcomes, H,T. The total number of outcomes for 6 flips are 26 or 64.
