Column inches of classified advertisements

Reference no: EM13103112

The number of column inches of classified advertisements appearing on Mondays in a certain daily newspaper is normally distributed with a population mean of 320 and a population standard deviation of 20 inches.

1. Referring to the table above, for a randomly chosen Monday, what is the probability there will be less than 340 column inches of classified advertisements?

2. Referring to the table above, for a randomly chosen Monday, what is the probability there will be between 280 and 360 column inches of classified advertisements?

Reference no: EM13103112

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