If a set of data is approximately normally distributed, we would find that approximately
A)2 of every 3 observations would fall between 1 standard deviation around the mean.
B)4 of every 5 observations would fall between 1.28 standard deviations around the mean.
C)19 of every 20 observations would fall between 2 standard deviations around the mean.
D)All the above.

Question

If a set of data is approximately normally distributed, we would find that approximately
A)2 of every 3 observations would fall between 1 standard deviation around the mean. 
B)4 of every 5 observations would fall between 1.28 standard deviations around the mean. 
C)19 of every 20 observations would fall between 2 standard deviations around the mean. 
D)All the above.

Quizplus · Accepted Answer

The Answer is D

If a Set of Data Is Approximately Normally Distributed, We