MA145-B Fall2008 Assignment 3 - Measures of Location and Dispersion

This assignment will make use of the same data file used in Assignment 1. You may use either the .csv or the .xls version.

Instructions

• Using a spreadsheet, compute the following sample statistics for the entire mpg column:
  • mean
  • median
  • mode
  • standard deviation
  • interquartile range
  • 90th percentile
• Repeat the above exercise, but include only Daimler-Chrysler vehicles.
• Repeat the above exercise, but include only Ford vehicles.
• Repeat the above exercise, but include only General Motors vehicles.