Understanding and Constructing Box Plots

Understanding And Constructing Box Plots

Introduction

A box plot is a data display that summarizes how numerical values are distributed. It helps identify the center, spread, and range of a data set and makes comparisons between data sets easier.

Mia recorded the number of books her classmates read in one month and summarized the data using a box-and-whisker plot.

A box-and-whisker plot is based on five numbers: the minimum, Q1, median, Q3, and maximum.

To construct the plot, she first arranged the 9 data values in ascending order. The minimum value is 2, and the maximum val...