For the binomial distribution described by the conditions in Exercise, find the standard deviation by evaluating 1npq.

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For the binomial distribution described by the conditions in Exercise, find the standard deviation by evaluating 1npq. Some books use the expression 1np(1 p) for the standard deviation. Will that expression always yield the same result?
In exercise In a clinical trial of the cholesterol drug Lipitor, 270 subjects were given a placebo, and 7% of them developed headaches. For such randomly selected groups of 270 subjects given a placebo, identify the values of n, p, and q that would be used for finding the mean and standard deviation for the number of subjects who develop headaches.
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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Elementary Statistics

ISBN: 9780321836960

12th Edition

Authors: Mario F. Triola

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