A data set with a mean of 60 has a standard deviation of 1.5. Which of the following is the smallest number that falls within one standard deviation of the mean? Choices:
A) 53
B) 56
C) 58
D) 63.5
E) 65
One standard deviation of the mean is from{mean}-{deviation}=60-1.5= 
<gadget id="calculator">60-1.5</gadget>
<output>58.5</output>
58.5 to{mean}+{deviation}=60+1.5=61.5. The smallest number within this range from the options is 58.   Answer: C.   Hope this helps.
<result>C</result>
A data set with a mean of 60 has a standard deviation of 1.5. Which of the following is the smallest number that falls within one standard deviation of the mean?