TeachHist               TeachHist: A Collection of Amended Histograms
                        Designed for Teaching Statistics
TeachHistConfInterv     Histogram to Visualize Confidence Intervalls
TeachHistCounts         Build a Histogram for Counts with Regular and
                        z-Value Axis
TeachHistDens           Build a Histogram with Regular and z-Value Axis
TeachHistHypTest        Histogram to Visualize Hypothesis Tests
TeachHistRelFreq        Build a Histogram for Relative Frequencies with
                        Regular and z-Value Axis
