Math Mammoth Statistics & Probability is a worktext with instruction and exercises, meant for grades 5-7.
The book starts with the easiest topics, such as reading different graphs. Then we study histograms and various kinds of line graphs, including how to draw them.
The book also deals with mean, median, and mode—the three measures of central tendency—how to use them, and how these concepts relate to line and bar graphs. We also study, data analysis, range, and stem-and-leaf plots.