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The average number of cocktails that residents of my nursing home drink weekly is normally distributed...

The average number of cocktails that residents of my nursing home drink weekly is normally distributed with mean of 12 cocktails with a standard deviation of 3 cocktails. What percent of residential wings average between 14.3 and 14.8 drinks weekly ?

options: about 60% about .04% about .40% about 4% about 99% about 6%

Math   Statistics-And-Probability   
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