If a sample of data has mean of 20 and SD of 3, which of the following values is more than 2.8 SDs from the mean?
Choose the correct choice:  A) 16  B) 15  C) 14  D) 13  E) 11
2.8 SD's mean is equal to: +/- 2.8*3 = +/- 8.4   ie. 11.6 to 28.4   Answer is: 11
<result>E</result>
If a sample of data has mean of 20 and SD of 3, which of the following values is more than 2.8 SDs from the mean?