ABSTRACT
We discussed several techniques for graphical exploratory data analysis in Chapters 5 and 6. One purpose of these exploratory techniques is to obtain information and insights about the distribution of the underlying population. For instance, we would like to know if the distribution is multimodal, skewed, symmetric, etc. Another way to gain understanding about the distribution of the data is to estimate the probability density function from the random sample, possibly using a nonparametric probability density estimation technique.
