A data set with a mean of 60 has a standard deviation of 8.7. Which of the following is the smallest number that falls within one standard deviation of the mean?	Pick one:
A) 51
B) 56
C) 59
D) 63.5
E) 65
One standard deviation of the mean is from{mean}-{deviation}=60-8.7= 
<gadget id="calculator">60-8.7</gadget>
<output>51.3</output>
51.3 to{mean}+{deviation}=60+8.7=68.7. The smallest number within this range from the options is 51.   Answer: A.   Hope this helps.
<result>A</result>
A data set with a mean of 60 has a standard deviation of 8.7. Which of the following is the smallest number that falls within one standard deviation of the mean?