A standard iq test produces normally distributed results
A standard I.Q. test produces normally distributed results with a mean of 100 and a standard deviation of 15. If an average I.Q. is defined to be any I.Q. between 90 and 109, find the probability of randomly selecting an I.Q. which is average.
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A 2016 survey of undergraduate students considered this further and found that compared with students that did not use cannabis at least once
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