What is the probability of getting 7 heads and 7 tails with 14 coin flips?

1 Answer
MathFact-orials.blogspot.com
May 15, 2018

#((14),(7))(1/2)^7(1/2)^7=3432(0.0078125)(0.0078125)~~0.2095#

Explanation:

The probability of getting a heads on any given flip is #1/2#. Same with the probability of getting tails on any given flip. The las thing we need to know is the number of ways we can order the Heads and Tails results - and that's #((14),(7))#. Overall, we have:

#((14),(7))(1/2)^7(1/2)^7=3432(0.0078125)(0.0078125)~~0.2095#

Related questions
See all questions in Calculating Binomial Probabilities
Impact of this question
5784 views around the world
You can reuse this answer
Creative Commons License