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The daily sales at a convenience store produce a distribution that is approximately normal with a mean of 1220 and a standard deviation of 124. In your intermediate calculations, round z-values to two decimal places.
The probability that the sales on a given day at this store are more than $1405, rounded to four decimal places, is: .
The probability that the sales on a given day at this store are less than $1305, rounded to four decimal places, is: .
The probability that the sales on a given day at this store are between $1200 and $1300, rounded to four decimal places, is:
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