Introduction to Data Interpretation
Direction: Study the following graph carefully to answer the questions given below.
 What is the average number of selected employees by company A in all grades taken together?

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According to given graph , we have
Total number of selected employees by company A = 150 + 300 + 300 + 500 + 650 + 800 = 2700
Number of given grades = 6Required average = Total number of selected employees by company A Number of given grades
Correct Option: A
According to given graph , we have
Total number of selected employees by company A = 150 + 300 + 300 + 500 + 650 + 800 = 2700
Number of given grades = 6Required average = Total number of selected employees by company A Number of given grades Required average = 2700 = 450 6
Direction: The following is a horizontal bar diagram showing the accidents in which twowheelers are involved with other objects. Study the diagram and answer the questions.
 The percentage by which the accidents involving buses is less than the accidents involving tanker lorry is

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As per the given above bar diagram , we see that one box represents the number of 20.
Total accidents = 230 + 150 + 120 + 160 + 40 + 200 + 100 = 1000
Number of accidents involving buses = 120
Number of accidents involving tanker lorry = 160
Difference = 160  120 = 40Correct Option: B
As per the given above bar diagram , we see that one box represents the number of 20.
Total accidents = 230 + 150 + 120 + 160 + 40 + 200 + 100 = 1000
Number of accidents involving buses = 120
Number of accidents involving tanker lorry = 160
Difference = 160  120 = 40Required percentage = 40 × 100 = 4% 1000
 The percentage of accidents in which pedestrians and cyclists are involved is

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According to given bar diagram , we have
Number of accidents involving pedestrians and cyclists = 40 + 200 = 240
Total accidents = 230 + 150 + 120 + 160 + 40 + 200 + 100 = 1000Required percentage = Number of accidents involving pedestrians and cyclists × 100 Total accidents
Correct Option: A
According to given bar diagram , we have
Number of accidents involving pedestrians and cyclists = 40 + 200 = 240
Total accidents = 230 + 150 + 120 + 160 + 40 + 200 + 100 = 1000Required percentage = Number of accidents involving pedestrians and cyclists × 100 Total accidents Required percentage = 240 × 100 = 24% 1000
 If the data of the bar diagram is represented by a piechart, and the angle of a sector of the pie chart is 36°, then this sector represents the accidents involving

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On the basis of given the bar diagram is represented by a piechart in question ,
Total accidents = 230 + 150 + 120 + 160 + 40 + 200 + 100 = 1000
Total corresponding angle of pie chart = 360°
∵ 1000 ≈ 360 °Correct Option: D
On the basis of given the bar diagram is represented by a piechart in question ,
Total accidents = 230 + 150 + 120 + 160 + 40 + 200 + 100 = 1000
Total corresponding angle of pie chart = 360°
∵ 1000 ≈ 360 °∴ 100 ≡ 360 × 100 = 36 ° 1000
Therefore , required answer is stationary vehicles .
 60% of the accidents are involved due to

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As per the given above bar diagram , we see that one box represents the number of 20.
Total accidents = 230 + 150 + 120 + 160 + 40 + 200 + 100 = 1000
Twowheelers + Cars + Buses + Stationary Vehicles = 230 + 150 + 120 + 100 = 600Correct Option: C
As per the given above bar diagram , we see that one box represents the number of 20.
Total accidents = 230 + 150 + 120 + 160 + 40 + 200 + 100 = 1000
Twowheelers + Cars + Buses + Stationary Vehicles = 230 + 150 + 120 + 100 = 600Required percent = 600 × 100 = 60% 1000
Hence , required answer is option C.