Descriptive Statistics

Descriptive Statistics

1. Levels of Measurement

   • Ratio
   • Nominal
   • Ordinal
   • Interval

2. Measures of Central Tendency

   • Mean
   • Mode
   • Median
   • Range

3. Measures of Variability

   • Standard Deviation
   • Variance

4. Frequencies

   • Scatterplots, Histograms

5. Quantitative

6. Qualitative

7. Definitions

   • Genus
   • Difference

8. Inferential Statistics

   • Null Hypothesis
   • Population and Sample Size
   • Data Collection
   • Central Limit Thm
   • Level of Significance
   • Normal Curve
   • z-test
   • Probability
   • Hypoth Test
   • Standard Error of Mean

9. Statistics

   • Correlation
     • Pearson r
       • Percentage
       • Variance
   • Linear Regressions
     • Coeff of Det
       • Trends, frequencies, slope & Intercept