Study Guide for Exam 2

CHAPTER 5
   The Range
    Benefits and Liabilities
    Mean Deviations
    The Variance
    Standard Deviations
    Derivational Formulas
    Computational Formulas
    Calculating Variability for Grouped Frequency Distributions

CHAPTER 6
   Scaled Scores
        Uses
    Adding or Subtracting a Constant
        Change to Mean
        Change to Variance
    Multiplying or Dividing by a Constant
        Change to Mean
        Change to Variance
    Standard Scores
        Uses
    Z-scores

CHAPTER 7
   Characteristics of the Normal Curve
        Five Characteristics
    Using Table Z: Finding Areas under the Curve
        Area Above: Finding Proportions Above Positive and Negative
            Z-scores
        Area Below: Finding Proportions Below Positive and Negative
            Z-scores
        Area Between: Finding Proportions between Two Z-Scores
    Finding Percentiles
    Using Table P: Finding Distinct Scores
    Quartiles
    Formula for Finding Raw Score