Last week’s post, “A Histogram is NOT a Bar Chart ”, explained that bar charts were used for comparing categorical variables and that histograms were used to show the distributions of binned ...

When data is presented as a list of numbers, it can be difficult to interpret. If it is summarised in a diagram it is easier to draw conclusions and to compare with a different data set. A box plot is ...

Visualization methods enhance our understanding of sample data and help us make comparisons across samples. Box plots are a simple but powerful graphing tool that can be used in place of histograms to ...