Numerical Measures of Central Tendency and Variability

Measures of Variability

Learning Objectives

  1. Determine the relative variability of two distributions
  2. Compute the range
  3. Compute the inter-quartile range
  4. Compute the variance in the population
  5. Estimate the variance from a sample
  6. Compute the standard deviation from the variance
  7. What is Variability?