Introduction to Data Interpretation
Direction: Study the following graph and answer the questions. Number on the top of a bar is the number of TVs.
- What is the difference between average demand and average production of the five companies taken together?
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On the basis of given graph in question ,
Total demand = 3300 + 1200 + 3000 + 600 + 2500
Number of companies = 5Average demand = 3300 + 1200 + 3000 + 600 + 2500 5 Average demand = 10600 = 2120 5
Total production = 2200 + 2700 + 1500 + 1800 + 1000
Number of companies = 5Average production = 2200 + 2700 + 1500 + 1800 + 1000 5
Correct Option: C
On the basis of given graph in question ,
Total demand = 3300 + 1200 + 3000 + 600 + 2500
Number of companies = 5Average demand = 3300 + 1200 + 3000 + 600 + 2500 5 Average demand = 10600 = 2120 5
Total production = 2200 + 2700 + 1500 + 1800 + 1000
Number of companies = 5Average production = 2200 + 2700 + 1500 + 1800 + 1000 5 Average production = 9200 = 1840 5
&there; Required difference = Average demand : Average production
&there; Required difference = 2120 – 1840 = 280
- What is the ratio of the companies having more demand than production to the companies having more production than demand?
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From the given bar diagram , we see
Companies with more demand than production are A, C and E.
Companies with more production than demand are B and D.Correct Option: D
From the given bar diagram , we see
Companies with more demand than production are A, C and E.
Companies with more production than demand are B and D.
∴ Required ratio = 3 : 2
Direction: Given here is a multiple bar diagram depicting the changes in the students strength of a college in four faculties from 1990 – 91 to 1992 – 93. Study the diagram and answer the questions.
- What was the per cent increase in Science students from the year 1990 – 91 to 1992 – 93?
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According to given bar graph , we have
Students’ strength in Science in 1990-91 = 400
Students’ strength in Science in 1992-93 = 600
Increase = 600 – 400 = 200Percent increase = Increase × 100 Students’ strength in Science in 1990-91
Correct Option: A
According to given bar graph , we have
Students’ strength in Science in 1990-91 = 400
Students’ strength in Science in 1992-93 = 600
Increase = 600 – 400 = 200Percent increase = Increase × 100 Students’ strength in Science in 1990-91 Percent increase = 200 × 100 = 50% 400
- The total students strength in 1991 – 92 was how many times that of Commerce students in the same year?
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On the basis of given graph in question ,
Total students’ strength in 1991-92 = 550 + 500 + 250 +200 = 1500
Students’ strength in commerce in 1991-92 = 250∴ Required answer = Total students’ strength in 1991-92 Students’ strength in commerce in 1991-92
Correct Option: D
On the basis of given graph in question ,
Total students’ strength in 1991-92 = 550 + 500 + 250 +200 = 1500
Students’ strength in commerce in 1991-92 = 250∴ Required answer = Total students’ strength in 1991-92 Students’ strength in commerce in 1991-92 Required answer = 1500 = 6 250
- The percentage of students in Science faculty in 1990 – 91 was
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According to given bar graph , we have
Number of students in all faculties taken together in 1990-91 = 600 + 400 + 200 + 150 = 1350
Number of students in science faculty = 400∴ Required percentage = Number of students in science faculty × 100 Number of students in all faculties taken together in 1990-91
Correct Option: C
According to given bar graph , we have
Number of students in all faculties taken together in 1990-91 = 600 + 400 + 200 + 150 = 1350
Number of students in science faculty = 400∴ Required percentage = Number of students in science faculty × 100 Number of students in all faculties taken together in 1990-91 Required percentage = 400 × 100 = 29.6% 1350
