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OpenStudy (lilpac):
What is the probability of flipping a coin 15 times and getting heads 7 times? Round your answer to the nearest tenth of a percent. A. 19.6% B. 15.3% C. 4.2% D. 9.2%
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OpenStudy (peachescherry14):
what grade is this
OpenStudy (peachescherry14):
@lilpac
OpenStudy (lilpac):
12th
OpenStudy (knov):
|dw:1462816263581:dw|
OpenStudy (kropot72):
This is a binomial distribution. \[\large P(7\ heads)=\frac{15!}{7!8!}\times(0.5)^{7}\times(0.5)^{8}\]
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