Question 76116
A coin is tossed 9 times. What is the probability that the coin will land heads at least 7 times?
It's a binomial problem with n=9, p=1/2, 7<=x<=9
Use"1- binomcdf(9,0.5,6)" on your TI calculator.
Ans:0.08984375...
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Cheers,
Stan H.