Asked by Mschribe
Suppose that a coin is tossed 100 times. Let X be the number of times that it shows heads. Find the mean and standard deviation of X.
Answers
Answered by
MathGuru
mean = np = (100)(.5) = ?
standard deviation = √npq = √(100)(.5)(.5) = ?
(Note: q = 1 - p)
I'll let you finish the calculations.
standard deviation = √npq = √(100)(.5)(.5) = ?
(Note: q = 1 - p)
I'll let you finish the calculations.
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