If a certain sample of data has a mean of 33.0 and a standard deviation of 2.0, which of the following pairs contain two values that are each at least 2.5 standard deviations from the mean?	Select the correct option.
A) (26.0; 39.5) B) (32.5; 34.0) C) (30.0; 36.5) D) (31.5; 38.5) E) (29.0; 36.0)
The standard deviation is 2, so 2.5 standard deviations would be (2.5)(2) = 5.   The values between 28 and 38 are within 2.5 standard deviations from the mean.   The answer is (26.0; 39.5).
<result>A</result>
If a certain sample of data has a mean of 33.0 and a standard deviation of 2.0, which of the following pairs contain two values that are each at least 2.5 standard deviations from the mean?