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Records on the cloud cover have been kept in Raleigh, North Carolina, for 47 years. The mean for cloudless days in October is 13. How many cloudless days occurred in October during those 47 years?
 Oct 23, 2012
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13  * 12 * 47 = 7332 days

(avg cloudless days in a month   x    months in a year    x    years)

 Feb 21, 2021

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