Stem-and-Leaf Plots

Key Questions

• What are Stem-and-Leaf Plots?

  Answer:

  Look below.

  Explanation:

  A stem-and-leaf-plot is a table where each data value is split into two parts, one called the stem and the other the leaf. The stem is the first digit/digits, and the leaf is the last digit/digits.:

  omegavibe12 · 1 · Mar 13 2018
• Why are stem and leaf plots useful?

  Stem-and-leaf plots are a method for showing the frequency with which certain classes of values occur. You could make a frequency distribution table or a histogram for the values, or you can use a stem-and-leaf plot and let the numbers themselves to show pretty much the same information.

  Sidharth · 2 · Jan 15 2015
• How do you create a histogram?

  In short, these are the steps:

  1) Reorder your data set from lowest to highest (use the Data Sort command in your spreadsheet software).

  2) Look at the minimum and maximum data points and determine the data range.

  3) Split the data range into a convenient number of equal intervals (for example, a data range of 48 can be split into 6 intervals with an interval step of 8 or into 8 intervals with an interval step of 6).

  4) Build a frequency table for the intervals defined at step 3. (Count the frequencies, i.e. the number of data points within each interval and write them in a table).

  5) Create a column chart having the data intervals on the x-axis and the frequencies on the y-axis. (Use the provided command in your spreadsheet software).

  For a practical example, have a look at this Google Sheet document that contains three sheets (raw data set, ordered data set and frequency table with histogram).

  P.S. This question was answered many times on Socratic:

  http://socratic.org/questions/how-do-you-construct-a-histogram-using-the-data-12-13-21-27-33-34-35-37-40-40-41#151166

  http://socratic.org/questions/how-do-you-create-a-histogram-from-a-frequency-table#150009

  Alex Boroda · 2 · Jun 7 2015

• What are Stem-and-Leaf Plots?
• How are stem and leaf plots similar to histograms?
• Why are stem and leaf plots useful?
• How do you create a histogram?
• How do you construct a histogram using the data 12, 13, 21, 27, 33, 34, 35, 37, 40, 40, 41?