The arithmetic mean of a data set is 46 and the standard deviation of the set is 4. Which of the following contains the interval two standard deviations from the mean of the set?
Options:
A) 38 to 55
B) 38 to 54
C) 48 to 54
D) 80 to 54
E) 38 to 60
Arithmetic Mean = 46   SD = 4 (One Interval )   Two SD intervals means 38__42__46 __50__54   answer 38 to 54
<result>B</result>
The arithmetic mean of a data set is 46 and the standard deviation of the set is 4. Which of the following contains the interval two standard deviations from the mean of the set?