1
Q
variance
A
s^2
2
Q
standard deviation
A
s
3
Q
What is the pointer?
A
After numerically organizing data and calculating the pointer (p(n+1)), the result indicates the place in the ordered data where the pth percentile value is located. For example, if the result of p(n+1) is 3.25, then the pth percentile is located between the 3rd and 4th data point. Take the average of the 3rd and 4th value to obtain the percentile value.
4
Q
What is a percentile?
A
The pth percentile is the value such that p% of the sample is below
