practice

1. electric-energy.txt
   In the United States, electric energy is measured in kilowatt hours and purchased with dollars.
   1. Determine the equation of the best fit straight line.
   2. Explain the significance of the coefficients m, b, and r².
2. standard-atmosphere.txt
   This text file provides standard meteorological data for the earth's atmosphere as a function of altitude above sea level.
   1. Find the transformation that will relate the pressure to altitude with a linear equation.
   2. Write the nonlinear equation that results.
3. dash-world-records.txt (utf-8)
   The text file referenced above has data on the world records for the 100 m dash. The data are broken up into four groups:
   1. men's electronically-timed world records,
   2. men's hand-timed world records,
   3. women's electronically-timed world records, and
   4. women's hand-timed world records
   Analyze this data.
   1. Perform a linear regression on both men's and women's world record times.
   2. Explain the significance of the numerical results.
   3. Make an interesting prediction.
   Source: International Association of Athletics Federations (IAAF)
   
   
4. anscombe-data.txt
   Source: Anscombe, F.J. "Graphs in Statistical Analysis," The American Statistician. Vol. 27, No. 1 (1973): 19.

conceptual

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numerical

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algebraic

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calculus

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statistical

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investigative

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worksheets

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