A data set with a mean of 40 has a standard deviation of 3.5. Which of the following is the smallest number that falls within one standard deviation of the mean?
Choose the correct choice.
A) 18 B) 36 C) 59 D) 63.5 E) 65
One standard deviation of the mean is from{mean}-{deviation}=40-3.5= 
<gadget id="calculator">40-3.5</gadget>
<output>36.5</output>
36.5 to{mean}+{deviation}=40+3.5=43.5. The smallest number within this range from the options is 36.   Answer: B.   Hope this helps.
<result>B</result>
A data set with a mean of 40 has a standard deviation of 3.5. Which of the following is the smallest number that falls within one standard deviation of the mean?