Nobody is too old to learn something new. Young statisticians analyze census data on the percentage of the population older than 65 years old in US counties. They fit a normal distribution to the data, determine the mean and standard deviation, and use the empirical rule to solve problems.

Concepts

normal distribution, standard deviation, data analysis, population data, demographics

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Additional Tags

math

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Instructional Ideas

• Use the extension activity as an extra credit assignment
  

Classroom Considerations

• Scholars should have knowledge of normal distributions
• The ability to calculate mean and standard deviation is necessary
  

Pros

• Includes student worksheets with professional-looking graphs that are easy to interpret
• Provides an answer key with sample responses
  

Cons

• None

Common Core

MP2 HSS-ID.A.4