A random variable X is such that X-N(-5, 9). (a) Find the probability that a randomly chosen
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A random variable X is such that X-N(-5, 9).
(a) Find the probability that a randomly chosen item from the population will have a positive value.
(b) Find the probability that out of ten items chosen at random, exactly four will have a positive value.
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Related Book For 
A Concise Course In Advanced Level Statistics With Worked Examples
ISBN: 9780748754755
4th Edition
Authors: J. Crawshaw, J. Chambers
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