# Box And Whisker Plot Notes Pdf

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Published: 04.06.2021  Top every test on box and whisker plots with our comprehensive and exclusive worksheets. Box plot is a powerful data analysis tool that helps students to comprehend the data at a single glance. It gives a lot of information on a single concise graph.

Box-and-whisker plot worksheets have skills to find the five-number summary, to make plots, to read and interpret the box-and-whisker plots, to find the quartiles, range, inter-quartile range and outliers. Word problems are also included.

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## Box-and-Whisker Plot Worksheets

In its simplest form, the boxplot presents five sample statistics - the minimum , the lower quartile , the median , the upper quartile and the maximum - in a visual display. The box of the plot is a rectangle which encloses the middle half of the sample, with an end at each quartile. The length of the box is thus the interquartile range of the sample. The other dimension of the box does not represent anything in particular. A line is drawn across the box at the sample median.

October 1, by Anthony Persico. A box and whisker plot is a visual tool that is used to graphically display the median, lower and upper quartiles, and lower and upper extremes of a set of data. Box and whisker plots help you to see the variance of data and can be a very helpful tool. This guide to creating and understanding box and whisker plots will provide a step-by-step tutorial along with a free box and whisker plot worksheet. Observe the following data set below that shares a basketball players points scored per game over a seven game span:. ## Understanding Boxplots

This will be a whole group discussion based upon the teacher scripted questions. The reason I chose to do this first was to get the students thinking about those measures and how they will relate to the box plots. Box plots are great for showing median and range, however, they do not represent the mean or m ode. Begin the middle part of the lesson by explaining and displaying a box plot. Allow students to make observations about what they see in the box plot. Apply the definitions to the visual. Next, using the teacher script, walk the students through how to construct the box plot using the table from slide 5.

Sign in. The image above is a boxplot. It can tell you about your outliers and what their values are. It can also tell you if your data is symmetrical, how tightly your data is grouped, and if and how your data is skewed. This tutorial will include:. As always, the code used to make the graphs is available on my github. Steps to make a box and whisker plot: 1) Order the data from least to greatest. 2) Circle the median. The find the upper and lower quartiles.

## Box and Whiskers... Analyzing and Creating

In descriptive statistics , a box plot or boxplot is a method for graphically depicting groups of numerical data through their quartiles. Box plots may also have lines extending from the boxes whiskers indicating variability outside the upper and lower quartiles, hence the terms box-and-whisker plot and box-and-whisker diagram. Outliers may be plotted as individual points. Box plots are non-parametric : they display variation in samples of a statistical population without making any assumptions of the underlying statistical distribution though Tukey's boxplot assumes symmetry for the whiskers and normality for their length. The spacings between the different parts of the box indicate the degree of dispersion spread and skewness in the data, and show outliers.

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