Learning Objectives  

after the completion of this module, the student will be able to

  • calculate central tendencies and measures of dispersion of data sets employing both formulas and spreadsheet functions (LO2a)
  • interpret central tendencies and measures of dispersion in the context of a data set (LO2a)
  • choose an appropriate graph to visualize the data (LO2a)
  • use online resources to gather information about data (LO2b)

Knowledge and Skills

  • sample mean, average, median
  • range, percentile, quartile, interquartile range
  • sample variance, sample standard deviation
  • EXCEL functions for calculating descriptive statistics


  • real number line
  • percentages
  • graphing in Excel

Curricular Materials