SOLUTION: You toss a fair coin 36 times. The number of heads you observe is 2 standard deviations above the expected value. How many heads did you observe?

SOLUTION: You toss a fair coin 36 times. The number of heads you observe is 2 standard deviations above the expected value. How many heads did you observe?

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Question 849640: You toss a fair coin 36 times. The number of heads you observe is 2 standard deviations above the
expected value. How many heads did you observe?
Answer by swincher4391(1107) (Show Source): You can put this solution on YOUR website!
This is a binomial distribution with
mean = 36 * .5 = 18
sd = sqrt(36*.5*.5) = 3
2 standard deviations above = 18 + 2*3 = 24 heads.
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