If a certain sample of data has a mean of 20.0 and a standard deviation of 4.0, which of the following values is more than 2.5 standard deviations from the mean?	Choose the correct choice from the following:  A) 12.0  B) 13.5  C) 17.0  D) 23.5  E) 26.5
The standard deviation is 4. 2.5 standard deviations, which is just 2.5 x 4.0 is 10.0. The only answer more than 10.0 away from the mean is 12.0.
<result>A</result>
If a certain sample of data has a mean of 20.0 and a standard deviation of 4.0, which of the following values is more than 2.5 standard deviations from the mean?