Dr. J's Maths.com
Where the techniques of Maths -
are explained in simple terms.

Statistics - descriptive methods.
Main page.


 

Univariate data.  
Measures of Central tendency Summary of the mode, median and mean.
  Central tendency - Test Yourself 1.
 

Central tendency -
Test Yourself 1 - Solutions.
  Central tendency - Test Yourself 2.
   
Multi-modal.  
   
Measures of dispersion (spread). Summary of the three main statistics - range, inter-quartile range and standard deviation.
   
Inter-quartile range. Concept and calculation.
  IQR - Test Yourself 1.
  IQR - Test Yourself 1 - Solutions.
Skewness.  
   
Bivariate data.  
Correlation.  
  Correlation - Test Yourself 1.
  Correlation - Test Yourself 1 - Solutions.
  Correlation - Test Yourself 2.
   
   
Regression.  
  Regression - Test Yourself 1.