In order to calculate this value we must first understand what the lower quartile, median and upper quartile are: the lower quartile is the median of the lower half of the data. The \(\frac{(n+1)}{ ...

A box-and-whisker plot is displayed for the measurements in each subgroup on the box chart. Figure 32.12 illustrates the elements of each plot. Figure 32.12: Box-and-Whisker Plot ...

Sampling data - Intermediate & Higher tier - WJEC Cumulative frequency – Intermediate & Higher tier - WJEC Averages and range - WJEC Discussing results - WJEC Mean, median and mode ...