Standard Deviation Worksheet
Explore standard deviation with this Grade 9 math worksheet, covering calculations, interpretation, and application to data sets.
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Standards
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Standard Deviation Practice
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Read each question carefully and provide your answers. Show all your work for calculation problems.
1. Standard deviation is a measure of the of a data set from its mean.
2. A small standard deviation indicates that data points are generally to the mean.
3. The square of the standard deviation is called the .
4. Calculate the mean of the following data set: {2, 4, 6, 8, 10}.
5. Calculate the standard deviation of the data set: {2, 4, 6, 8, 10}.
6. Which of the following data sets would likely have the largest standard deviation?
{5, 5, 5, 5, 5}
{1, 2, 3, 4, 5}
{1, 5, 10, 15, 20}
{4, 5, 6, 7, 8}
7. A standard deviation of zero means all data points are identical.
True
False
8. The standard deviation can be a negative value.
True
False
9. Two classes took the same math test. Class A had a mean score of 75 with a standard deviation of 5. Class B had a mean score of 75 with a standard deviation of 12. Which class had more consistent scores? Explain your reasoning.
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