To find the proportion of times something occurs, we divide the count (often a binomial random variable)
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To find the proportion of times something occurs, we divide the count (often a binomial random variable) by the number of trials n. Using the formula for the mean and standard deviation of a binomial random variable, derive the mean and standard deviation of a proportion resulting from n trials and probability of success p.
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Let X be a binomial random variable with n trials and probability of success p an...View the full answer
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Related Book For 
Statistics Unlocking The Power Of Data
ISBN: 9780470601877
1st Edition
Authors: Robin H. Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F. Lock, Dennis F. Lock
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