Question 2
The countries listed in Table X below contributed money as indicated for a joint project in the year 2017. Use the data in the table to answer the questions that follow.
- Represent the data in Table X on a vertical divergent bar graph.
- State one use of divergent bar graph.
This optional question was not popularly answered by the candidates. Many of the candidates who attempted it did not know how to draw a divergent bar graph. They were expected to obtain the mean and calculate the deviations from the mean as follows:
Divergent bar graph
Average of the contributions = $50,000
Country A: $35,000-$50,000= -$15,000
Country B: $60,000-$50,000= +$10,000
Country C: $45,000-$50,000= -$5,000
Country D: $80,000-$50,000= +$30,000
Uses of divergent bar graph
-for summarizing large amount of data in visual form
-for presenting data in graphical form.
-for plotting climatic data
-to show the economic performance of an enterprise over the years
-to show the performance of a sector within an economy
-to make data more meaningful and vivid
-for inter-regional comparison on similar items
-for showing the status of some social economic variable of a country
-to show deviation of data from a common mean
-to present data in attractive and more mind engaging form
- to make easy, the understanding of the relative standing/values of groups of data.