Reading Bar Graphs
The bar graph looks like this:
Next to the X-axis (horizontal axis), we have some numbers. Next to the Y-axis (vertical axis), we have some numbers. And in the middle, we have some Bars. Try to understand the data presented here.
Finding it difficult? Yes, it is difficult because you do not know what these instruments mean.
Now, try to understand the same bar chart, but with topics.
OPINION 1: Before you can solve any questions, you must first understand what the Bar graph is trying to say. Make a habit of scanning articles first. You have to understand what is on the X-axis, what is on the Y-axis, what is the relationship between these two in terms of Bar length.
There will be five questions based on one Bar Graph and that means you can only get five full marks if you understand the data format presented in the question. That is what Data Interpretation means !!
Let's continue to solve five questions based on this Bar Graph.
Sample Questions
1. Direction: The graph below compares India’s performance with other lower-middle-income countries on various policy and institutional indicators. Use the data available in the graph to answer the questions that follow.
1. Which country’s score is the poorest in each indicator – Education, Employment, Asset Building, Financial Intermediation, Corruption/Rent, Basic Services, and Fiscal Transfers?
Laos PDR, India, India, Vietnam, Thailand, Laos PDR, India
The correct answer is C.
Average score for Education – (3.4 + 4.7 + 2.9 + 4.0 + 5.2 + 4.7) / 6 = 4.15
Average score for Employment – (3.1 + 3.7 + 4.6 + 4.0 + 4.1 + 4.7) / 6 = 4.03
Average score for Asset Building – (3.0 + 3.4 + 3.1 + 3.3 + 3.6 + 4.0) / 6 = 3.40
Average score for Financial Intermediation – (3.3 + 3.3 + 3.4 + 3.2 + 4.3 + 2.8) / 6 = 3.38
Average score for Corruption/Rent – (4.0 + 4.0 + 4.0 + 3.7 + 3.5 + 4.1) / 6 = 3.88
Average score for Basic Services – (3.8 + 4.4 + 3.5 + 4.4 + 5.0 + 4.4) / 6 = 4.25 – Highest
Average score for Fiscal Transfers – (2.7 + 3.4 + 3.2 + 3.5 + 3.6 + 3.4) / 6 = 3.30 – Lowest
3. Question- What is the highest percentage score in the employment indicator? (Note: The scores were awarded on a scale of 7)
67.22%
67.14%
65.71%
68.14%
Employment – Percent score
• India – (3.1 / 7) * 100 = 44.29%
• Indonesia – (3.7 / 7) * 100 = 52.86%
• Laos PDR – (4.6 / 7) * 100 = 65.71%
• Philippines – (4.0 / 7) * 100 = 57.14%
• Thailand – (4.1 / 7) * 100 = 58.57%
• Vietnam – (4.7 / 7) * 100 = 67.14%
4. Question- Identify the country and the indicator with the lowest percentage score, and the country and indicator with the highest percentage score across all Policy and Institutional Indicators:
Lowest - Financial Intermediation, Vietnam; Highest - Basic Services, Thailand
Lowest - Vietnam, Asset Building; Highest - Education, Thailand
Lowest - Education, Laos; Highest - Employment, Vietnam
Lowest - Fiscal Transfers, India; Highest - Education, Thailand
The highest score is in the Education indicator, scored by Thailand – 5.2
Percentage – 5.2 / 7 * 100 = 74.29%
The lowest score is in the Fiscal Transfers indicator, scored by India – 2.7
Percentage – 2.7 / 7 * 100 = 38.57%
- Vietnam
- Laos PDR
- Thailand
- Philippines
India’s score: Lowest in Fiscal Transfers – 2.7; Highest in Corruption/Rent – 4.0.
Therefore, difference = 4.0 – 2.7 = 1.3
Indonesia’s score: Lowest in Financial Intermediation – 3.3; Highest in Education – 4.7
Therefore, difference = 4.7 – 3.3 = 1.4
Laos PDR’s score: Lowest in Education – 2.9; Highest in Employment – 4.6
Therefore, difference = 4.6 – 2.9 = 1.7
Philippines’ score: Lowest in Financial Intermediation – 3.2; Highest in Basic Services – 4.4
Therefore, difference = 4.4 – 3.2 = 1.2
Thailand’s score: Lowest in Corruption/Rent – 3.5; Highest in Education – 5.2
Therefore, difference = 5.2 – 3.5 = 1.7
Vietnam’s score: Lowest in Financial Intermediation – 2.8; Highest in Education/Employment – 4.7
Therefore, difference = 4.7 – 2.8 = 1.9
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