SOLUTION: You flip a fair coin 10 times. What is the probability that it lands on heads exactly 7 times?
What is the probability that it lands on heads at least 7 times?
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Question 272155: You flip a fair coin 10 times. What is the probability that it lands on heads exactly 7 times?
What is the probability that it lands on heads at least 7 times?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
You flip a fair coin 10 times. What is the probability that it lands on heads exactly 7 times?
P(x = 7) = 10C7(1/2)^7(1/2)^3 = 0.1172
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What is the probability that it lands on heads at least 7 times?
P(7<= x <=10) = 1 - binomcdf(10,0.5,6) = 0.1719
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Cheers,
Stan H.
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