Calculate the mean, mode, median and range for ungrouped data.
Find the modal class, and calculate estimates of the range, mean and median for grouped data, and understand why they are estimates.
Describe a population using statistics.
Make simple comparisons.
Compare data sets using ‘like for like’ summary values.
Understand the advantages and disadvantages of summary values.
**Calculate estimates of mean, median, mode, range, quartiles and interquartile range from graphical representation of grouped data.
Draw and interpret box plots. Use the median and interquartile range to compare distributions.**