Stem and Leaf Plot

Features of a " Stem and Leaf Plot "

Features:
  • number of peaks
  • general shape (skewed or symmetric)
  • centre
  • spread

Steps of a " Stem And Leaf Plot "

  1. Arrange the data from smallest to largest and label them from 1 to the number of data points.
  2. Find the median of the data
  3. Find the lower quartile
  4. Find the upper quartile
  5. Find the minimum and maximum value

When are they used ?

Stem and Leaf Plots can be used to analyze data and display data all at the same time. This is a way of showing each data value along with its relationship to the other values.

If you turn a stem-and-leaf plot on its side, it's sort of like a histogram.

What are the pros and cons?

  • Pros:
    1. Visually represents complicated lists of numbers
    2. Can be used on one, two, and three digit numbers
    3. Can be used on decimals
    4. Can be used for money values (Dollars and Cents)
    5. Can be used to find Mean, Median, and Mode (Statistical Measures)

    Cons:

    1. The numbers must be placed in order of lowest to highest
    2. Not good if maximum or minimum numbers lie far away from the rest
    3. Not great if there are more than one decimal place