Find the Number of Standard Deviations from the Mean

question 160

Multiple Choice

Find the number of standard deviations from the mean. Round your answer to two decimal places.
-The annual snowfall in a town has a mean of 39 inches and a standard deviation of 10 inches. Last year there were 64 inches of snow. How many standard deviations from the mean is that?

• A) 0.45 standard deviations above the mean
• B) 0.45 standard deviations below the mean
• C) 2.50 standard deviations above the mean
• D) 2.50 standard deviations below the mean

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