Interpret the standard deviation and interquartile range.
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This GeoGebra tool specifically shows the number of standard deviations and how moving points on the graph alters the mean, standard deviation, and median.
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Below are the results that show the number of hours 50 babies slept in one night.
How many babies have sleep habits within “one standard deviation” from the mean?
Standard Deviation Visually Represented in a Dotplot by Forest Fisher is made available by GeoGebra under the CC BY-NC-SA 3.0 license. Copyright © International GeoGebra Institute, 2013. Accessed June 21, 2017, 10:18 a.m..
Two teams played 25 games of “cornhole” and charted the number of shots each team got in during a game.
Team A: Team B:
Mean: 8.0 Mean: 6.0
Standard Deviation: 2.0 Standard Deviation: 2.0
Which team is more consistent?
After Team A and Team B were done playing their games, Team C and Team D took over. They altered the rules a bit for higher scoring capability.
Boxplot Grapher is made available by IMathAS under the GNU General Public License. Accessed June 26, 2017, 2:39 p.m..
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The following resources include problems and activities aligned to the objective of the lesson that can be used to create your own problem set.
The manager at a factory that makes pants is going to award one of the employees Employee of the Month. Below are the number of pants that each of two of the most productive workers have made over a period of 12 days.
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Below are dot plots for three different data sets. The standard deviations for these three data sets are given in the following table. Looking at the dot plots and without calculating the standard deviations, match the data sets to the appropriate standard deviation.
Standard deviation A: 5.9
Standard deviation B: 3.3
Standard deviation C: 2.3
Describe how the standard deviations affect consistency of a data set.
Understanding the Standard Deviation, accessed on June 21, 2017, 10:22 a.m., is licensed by Illustrative Mathematics under either the CC BY 4.0 or CC BY-NC-SA 4.0. For further information, contact Illustrative Mathematics.