Sage-Tips

What is the probability of flipping 2 heads and a tail?

1/4
For example, the probability of two heads is 1/2 · 1/2 = 1/4, and the probability of two tails is the same. Since there are two leaves corresponding to one head and one tail, each of probability 1/4, the probability of this event is 1/4 + 1/4 = 1/2.

What is the probability of getting 2 heads in a row?

So you might think like this. There is a 1/4 chance of getting two heads in a row when tossing a coin twice.

What is the probability of getting exactly two heads?

0.5
The probability of getting two heads on two coin tosses is 0.5 x 0.5 or 0.25. A visual representation of the toss of two coins. The Product Rule is evident from the visual representation of all possible outcomes of tossing two coins shown above. The probability of getting heads on the toss of a coin is 0.5.

What is the probability of getting exactly 2 tails?

Summary: Toss a coin 5 times, then the probability of getting exactly 2 tails is 5/16.

What is the probability of a coin coming up heads twice?

When you flip a coin four times, what is the probability that it will come up heads exactly twice? Thus the probability is: 2 / 8 = 0.25 but the correct answer is 0.375. Can anyone explain why I’m wrong?

What if my heads and Tails don’t have the same probability?

(Optional) If your heads and tails don’t have the same probability of happening, go into advanced mode, and set the right number in the new field. Remember that in classical probability, the likelihood cannot be smaller than 0 or larger than 1. The coin flip probability calculator will automatically calculate the chance for your event to happen.

What is the probability of $2/8 for a $4$ flip?

My calculation: we have $2$ results for one flip : up or down so flip $4$ times, we have $4\\cdot2 = 8$ results total Thus the probability is: $2/ 8 = 0.25 $ but the correct answer is $0.375$. Can anyone explain why I’m wrong? probability Share Cite Follow edited Oct 6 ’14 at 9:01 AlexR

How many results are there for each of four coin flips?

Two results for each of four coin flips. When ways to perform tasks in series, we multiply. So that is $2 imes 2 imes 2 imes 2$ results in total. That is $2^4$ or $16$.