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TABLE 6-3 the Number of Column Inches of Classified Advertisements Appearing on Appearing

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TABLE 6-3
The number of column inches of classified advertisements appearing on Mondays in a certain daily newspaper is normally distributed with population mean 320 and population standard deviation 20 inches.
-Referring to Table 6-3, for a randomly chosen Monday, what is the probability there will be between 280 and 360 column inches of classified advertisement?

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0.9545 usi...

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