Find the Number of Standard Deviations from the Mean

question 209

Multiple Choice

Find the number of standard deviations from the mean. Round your answer to two decimal places.
-Mario's weekly poker winnings have a mean of $353 and a standard deviation of $67. Last week he won $185. How many standard deviations from the mean is that?

• A) 1.25 standard deviations below the mean
• B) 1.25 standard deviations above the mean
• C) 2.51 standard deviations below the mean
• D) 2.51 standard deviations above the mean

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