Learning objectives

Learning objectives aid revision by reminding you of the concepts you will have mastered in each chapter.

In this chapter you will discover:

  • Statistical models
  • Central tendency: the mode, median and mean
  • Dispersion: the variance, standard deviation, and interquartile range
  • Quartiles and percentiles
  • Estimating model fit
  • Deviance and the sum of squared errors
  • Degrees of freedom
  • Outliers