Political Science 3000
Political Analysis
First Quiz Review

Sampling

• types of samples
• determinants of sample accuracy
• confidence intervals (margin of error)
• understand the interpretation of such intervals

Univariate Statistics

• frequency distributions
• measures of central tendency
  • mean
  • median
  • mode
    • be sure to know how to tell which measures are most appropriate for any given variable
      • level of measurement
• skewed v. normal distributions
• measures of dispersion
  • standard deviation
  • range
  • variation ratio
• z-scores

[Calculation of statitistics will not be important, but you should be able to interpret what these statistics mean, ie. you should have some basic understanding of how they are derived]