The 68-95-99.7 Rule
The figure below will help you to visualize the 68-95-99.7 Rule (or the Empirical Rule) for a Normal Distribution.
The histogram displays 100 data values from a population N(0,1).
The histogram is centered on the mean of the data.
What do you notice about the width of each bin of the data. Therefore, the bin boundaries are_______________.
The numbers on each bin is the number of _________________ in the bin. Since there are 100 data values, these numbers are ______________________.