11.8.2 Self-Check on Bar Charts

Tick iconExercise 5: Bar Charts

Expected Median Height of Girls and Boys Aged Between 2 and 5 Years Old

Age in yearsGirls' height/cmBoys' height/cm
285.787.1
2.590.791.9
395.196.1
3.599.099.9
4102.0103.3
4.5106.2106.7
5109.4110.0
Source of data: World Health Organisation,http://www.who.int/childgrowth/standards/sft_lhfa_girls_z_2_5.pdf, accessed September 6, 2012.

Draw a comparative bar chart for the data in the table.

Solutions icon

Answer

Your bar chart should look something like this. Did you remember to give yours a title and label the axes appropriately?

Expected Median Height of Girls and Boys Aged Between 2 and 5 Years Old

Source: World Health Organisation

The difference between the heights of boys and girls at these ages does not show up in the bar chart as they are so close.  Can you think of a way of making this clearer?

11.8.1 Self-Check on Averages

11.8.3 Self-Check on Pie Charts