Find the Number of Standard Deviations from the Mean

question 3

Multiple Choice

Find the number of standard deviations from the mean. Round your answer to two decimal places.
-The test scores on the Chapter 10 mathematics test have a mean of 52 and a standard deviation of 10. Andrea scored 86 on the test. How many standard deviations from the mean is that?

• A) 3.40 standard deviations below the mean
• B) 3.40 standard deviations above the mean
• C) 0.49 standard deviations above the mean
• D) 0.49 standard deviations below the mean

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