1/13/2024 0 Comments Stem and leaf plot calculator![]() The vertical lines protruding from the box extend to the minimum and the maximum values of the data set, as long as these values are not outliers. The horizontal line inside the box is the median. Therefore the vertical width of the central box represents the inter-quartile deviation. The bottom side of the box represents the first quartile, and the top side, the third quartile. The box plot is also referred to as box and whisker plot or box and whisker diagram Elements of the box plot What is a box plotĪ box plot is a diagram that gives a visual representation to the distribution of the data, highlighting where most values lie and those values that greatly differ from the norm, called outliers. These measures are displayed to the left of the chart.For more details on the dispersion of the data set, you may click on the More dispersion data link located on the left of the plot. When you submit your data, the server calculates the measures that will be used to plot the diagram. To clear the graph and enter a new data set, press "Reset". Press the "Submit Data" button to create the plot.You may also copy and paste data from another window such as an open document, spreadsheet pdf file or another web page. You do not need to specify whether the data is from a population or a sample. Individual values may be entered on separate lines or separated by commas, tabs or spaces. You must enter at least 4 values to build the box plot. In the meantime, we'll miss you.This page allows you to create a box plot from a set of statistical data: If you ever get bored of it, head back on over here and finish reading this unit. There's a fun, interactive stem-and-leaf tutorial here. Then our mind can be free to wander and think about other things, like whether or not we left the air conditioning running. If we start by ordering the list of numbers, we don't need to think too hard about it. One other fine point: in the table, it's nice to write the leaves in numerical order. ![]() We suspect our dough does not require 15 cups of flour. This distinction makes a huge difference, especially if we're cooking. Otherwise, we won't know if 1|5 means 1.5 or 15. We do the same for the other stem, filling in the rest of our table-like thing:įinally, we make a key that explains how the numbers grow from a stem and a leaf:īe careful: Remember to make a key for your stem and leaf plot. We use the stems to start our stem-and-leaf plot: Very first thing, let's put the list in order: Oh joy, right? Sample Problemīuild a stem-and-leaf plot for the following list: Our data could also consist of numbers with decimal points. This note is not the appropriate place for you to write something like "Mark likes Mandy" or "I love your shoes." Let's keep it professional, people. The only thing left is to write a down a note at the bottom (formally called a key) that explains how we use the stem and the leaf to "grow'' a number. We put these into the table by the appropriate stem: Now, for each stem we write down its leaves that is, the digits that showed up in the ones place with that stem. We start our stem-and-leaf plot by putting these numbers into a table: The stems of the numbers in the list are the digits that occur in the tens place: 3, 4, and 5.ģ2, 34, 35, 36, 37, 45, 46, 47, 48, 55, 57
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