Exploratory Data Analysis
1.3. EDA Techniques
1.3.3. Graphical Techniques: Alphabetic
188.8.131.52. Normal Probability Plot
|Normal Probability Plot for Data that are Skewed Right|
We can make the following conclusions from the above plot of
the SUNSPOT.DAT data set.
|Discussion||This quadratic pattern in the normal probability plot is the signature of a significantly right-skewed data set. Similarly, if all the points on the normal probability plot fell above the reference line connecting the first and last points, that would be the signature pattern for a significantly left-skewed data set.|