Graphs and displays
Every plot the exam expects you to read, build, and compare, defined in one place.
8 terms
Bar graphA bar graph displays a categorical variable using separated bars whose heights show the count or relative frequency of each category.BoxplotA boxplot is a graph of the five-number summary, with a box from Q1 to Q3, a line at the median, and whiskers to the extremes.DotplotA dotplot displays quantitative data by stacking one dot above a number line for each observation at its value.Frequency tableA frequency table lists the categories or value ranges of a variable alongside the count of observations in each.HistogramA histogram displays quantitative data by grouping values into equal-width intervals and drawing a bar for the count in each interval.ScatterplotA scatterplot graphs paired values of two quantitative variables as points, showing the direction, form, and strength of their relationship.StemplotA stemplot, or stem-and-leaf plot, displays quantitative data by splitting each value into a leading stem and a trailing leaf digit.Two-way tableA two-way table displays counts for two categorical variables at once, with one variable's categories as rows and the other's as columns.