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Suppose a Normal Model Describes the Number of Pages Printer

question 34

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Suppose a Normal model describes the number of pages printer ink cartridges last. If we keep track of printed pages for the 47 printers at a company's office, which must be true?
I. The page counts for those ink cartridges will be normally distributed. II. The histogram for those page counts will be symmetric.
III. 95% of those page counts will be within 2 standard deviations of the mean.


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A governmental limit on the quantity of a product that can be produced or imported within a given timeframe, often to protect domestic industries.

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