Measures of Dispersion

What you need to learn in this topic

1. Determine range, interquartile range, variance and standard deviation as a measure to describe dispersion for grouped data
2. Construct and interpret a box plot for a set of grouped data.
3. Compare and interpret two or more sets of grouped data, based on measures of dispersion hence make conclusion.
4. Solve problems involving measures of dispersion for grouped data.
5. Design and conduct a mini-project involving statistical investigations based on measures of central tendency and measures of dispersion and hence interpret and communicate research findings.