What is the probability of at least 1 head when flipping a fair coin 3 times?
87.5\%
If you flip a coin three times the chance of getting at least one head is 87.5\%.
What’s the probability of getting at least 2 heads?
Option #1: Add up the following: The probability of getting exactly 2 heads, which is (32)23=38. The probability of getting exactly 3 heads, which is (33)23=18.
What’s the chance of flipping at least 1 head in 5 flips?
Since there are 16 possible outcomes, and 10 do not have N=2 heads, there must therefore be exactly 16 – 10 = 6 outcomes which do have exactly N=2 heads. The probability for N=2 is therefore 6/16 = 3/8. 2) Consider the experiment of rolling 3 dice, each of which has 6 sides.
What is the probability of at least 2 heads in 3 coin flips?
Therefor the probability of at least 2 heads in 3 coin flips is 4/8. How could I have done this without writing out all the possibilities and counting the ones with 2 or 3 H’s? Today the Indiana Pacers won the first game in the 4 out of 7 series with the Miami Heat.
What is the probability of getting at least 8 heads?
We can consider the cases of getting exactly 8 heads, exactly 9 heads and exactly 10 heads. So the probability of getting at least 8 heads in 10 coin flips is 0.0547. A fair coin is tossed five times. What is the probability of obtaining at least four tails?
What is the probability of getting a tail on flip 1?
Now let’s apply this to your problem. If you do not flip heads at least once in n trials, then all n trials must be tails. The probability of getting tails in one trial is 1 2, and since the trials are independent (what you get on flip 1 does not affect what you get on flip 2 does not affect what you get on flip k,…
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.