TEST OF PRACTICAL KNOWLEDGE QUESTION The countries listed in Table X below contributed money as indicated for a joint project in the year 2017. Use the data...

Answer Details

a) 

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
Country E: $30,000-$50,000 = -$20,000

b)

Uses of Divergent Bar Charts 

Divergent bar graphs are used to visualize data where there's a central reference point (often zero) and values can deviate in both positive and negative directions. Here are some common uses:

1. Comparing Positive and Negative Values: They are useful for comparing data sets where there are both positive and negative values. For example, they can be used to show profits and losses for different companies or countries.
2. Highlighting Deviations from a Central Point: They can effectively highlight deviations from a central point, such as average scores on an exam compared to individual student scores.
3. Surveying Opinions: They can be used to represent survey results with Likert scales, where responses range from strongly disagree (negative) to strongly agree (positive).