8. You have collected data about the fasting blood glucose (FBG) level of participants in your study. You are delighted to find that the variable is normally distributed. If the mean FBG is 82 and the standard deviation is 2.8 in what range would you expect to find the FBG of 68% of your study participants?
A) 79.2-84.8
B) 76.4-87.6
C) 73.6-90.4
D) Unable to determine

Question

8.	You have collected data about the fasting blood glucose (FBG) level of participants in your study.  You are delighted to find that the variable is normally distributed.  If the mean FBG is 82 and the standard deviation is 2.8 in what range would you expect to find the FBG of 68% of your study participants?
A)	79.2-84.8
B)	76.4-87.6
C)	73.6-90.4
D)	Unable to determine

Quizplus · Accepted Answer

68% of data in a normal distribution falls within one standard deviation of the mean. The mean is 82, and one standard deviation is 2.8, so the range is 82 ± 2.8, which is 79.2 to 84.8.

8 You Have Collected Data About the Fasting Blood Glucose (FBG)