STAT 119 Chapter Notes - Chapter 3: Multimodal Distribution, Histogram, Earlobe
Document Summary
Bins - slice up all the possible values and then count the number of cases that fall into each bin. Distribution - the bins together with these counts give the quantitative variable and provide the building blocks for the display of the distribution. Histogram plots the bin counts as the heights of bars. Counts the number of cases that fall into each bin and displays that count as the heigh of the corresponding bar. Gaps - indicate a region where there are no values. Each category got its own bar (categorical variables) Relative frequency histogram - report the percentage of cases in each bin. Are like histograms but they also show the individual values. Stem shown to the left of the solid line and the leaf to the right. Quantitative data condition - the data must be values of a quantitative earlobe whose units are known. Unimodal - distribution whose histogram has one main hump.
