Mathematics: Analysis and Approaches · Topic 4: Statistics and probability

SL4.3 — Measures of central tendency and dispersion

Mathematics: Analysis and Approaches · SL / HL · syllabus-mapped notes

1. Measures of central tendency

   Mean, median and mode, including estimating the mean from grouped data and the modal class.

2. Measures of dispersion

   Interquartile range, standard deviation and variance, found using technology.

3. Effect of transformations on data

   How adding a constant or multiplying every value changes the mean and the standard deviation.