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The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. Last year there were 63 inches of snow. How many standard deviations from the mean is that?
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The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. Last year there were 63 inches of snow. How many standard deviations from the mean is that?

User Waqas Ali
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1 Answer

5 votes
63 - 38
Just calculate the z-score: y = ---------------- = 25/10, or z = 2.5 (answer)
10
User Mark Brittingham
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