What value is one standard deviation below the mean

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The depth of the snow in my yard is normally distributed, with a mean of 2.5 inches and a standard deviation of 0.25 inches. 

What value is one standard deviation below the mean?  inches

What value is one standard deviation above the mean?  inches

What is the probability that a randomly chosen location will have a snow depth between 2.25 and 2.75 inches? percent

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Reference no: EM132289125

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