If a certain sample of data has a mean of 30.0 and a standard deviation of 3.5, which of the following values is more than 2.5 standard deviations from the mean?
Choose the correct choice:  A) 12.0  B) 13.5  C) 17.0  D) 23.5  E) 26.5
The standard deviation is 3.5. 2.5 standard deviations, which is just 2.5 x 3.5 is 8.75. The only answer more than 8.75 away from the mean is 12.0.
<result>A</result>
If a certain sample of data has a mean of 30.0 and a standard deviation of 3.5, which of the following values is more than 2.5 standard deviations from the mean?