Chapter 2 Review: Modeling Distributions of Data

2.1:

  • Percentiles

  • Calculating z-scores

  • Adding/subtracting positive constant from data set: changes measures of location but not shape or spread

  • Multiplying/dividing positive constant from data set: changes measures of location, spread but not shape


2.2:

  • Normal curve

  • Checking distribution of data is normal:

    • Use normality plot (more linear = more normal)