## Introduction to Data Interpretation

#### Data Interpretation

Direction: The bar graph given here shows the number of job- seekers of a state in various years at different stages of education. Study the graph carefully and answer the questions based on it. 1. In comparison to the year 1973, how many more job-seekers in all, were there in the year 1977?

1. According to given bar graph , we have
→ Year 1973 , Number of job-seekers = 1625
→ Year 1977 , Number of job-seekers = 4000
Required difference = Number of job-seekers in 1977 - Number of job-seekers in 1973

##### Correct Option: C

According to given bar graph , we have
→ Year 1973 , Number of job-seekers = 1625
→ Year 1977 , Number of job-seekers = 4000
Required difference = Number of job-seekers in 1977 - Number of job-seekers in 1973
∴ Required difference = 4000 – 1625 = 2375

1. In which year was the number of Graduate job-seekers the same as that of Senior Secondary job- seekers?

1. On the basis of given graph in question ,
Number of Graduate job- seekers in 1974 = 525
Total number of Graduate and Senior secondary job- seekers in 1974 = 1050

##### Correct Option: B

On the basis of given graph in question ,
Number of Graduate job- seekers in 1974 = 525
Total number of Graduate and Senior secondary job- seekers in 1974 = 1050
∴ Number of Senior secondary job -seekers in 1974 = 1050 – 525 = 525

Direction: The following is a horizontal bar diagram showing the accidents in which two-wheelers are involved with other objects. Study the diagram and answer the questions. 1. The percentage by which the accidents involving buses is less than the accidents involving tanker lorry is

1. From the given bar diagram , we see that one box represents a number of 20 units.
Number of the accidents involving buses = 6 boxes = 6 × 20 = 120 units
Number of the accidents involving tanker lorry = 8 boxes = 8 × 20 = 160 units
Total accidents = 230 + 150 + 120 + 160 + 40 + 200 + 100 = 1000 units

##### Correct Option: B

From the given bar diagram , we see that one box represents a number of 20 units.
Number of the accidents involving buses = 6 boxes = 6 × 20 = 120 units
Number of the accidents involving tanker lorry = 8 boxes = 8 × 20 = 160 units
Total accidents = 230 + 150 + 120 + 160 + 40 + 200 + 100 = 1000 units

 Required difference = 160 - 120 × 100 = 4% 1000

1. The percentage of accidents in which pedestrians and cyclists are involved is

1. As per the given bar diagram , we see that one box represents a number of 20 units.
Number of the accidents involving pedestrians = 2 boxes = 2 × 20 = 40 units
Number of the accidents involving cyclists = 10 boxes = 10 × 20 = 200 units
Total accidents = 230 + 150 + 120 + 160 + 40 + 200 + 100 = 1000 units

 Required percentage = 40 + 200 × 100 1000

##### Correct Option: A

As per the given bar diagram , we see that one box represents a number of 20 units.
Number of the accidents involving pedestrians = 2 boxes = 2 × 20 = 40 units
Number of the accidents involving cyclists = 10 boxes = 10 × 20 = 200 units
Total accidents = 230 + 150 + 120 + 160 + 40 + 200 + 100 = 1000 units

 Required percentage = 40 + 200 × 100 1000

 Required percentage = 24000 = 24% 1000

1. If the data of the bar diagram is represented by a pie-chart, and the angle of a sector of the pie- chart is 36°, then this sector represents the accidents involving

1. On the basis of given graph in question , we see that one box represents a number of 20 units.
Total accidents = 230 + 150 + 120 + 160 + 40 + 200 + 100 = 1000 units
In pie chart , complete angle = 360°
∵ 1000 ≡ 360°

 ∴ 100 ≡ 360 × 100 = 36° 1000

##### Correct Option: D

On the basis of given graph in question , we see that one box represents a number of 20 units.
Total accidents = 230 + 150 + 120 + 160 + 40 + 200 + 100 = 1000 units
In pie chart , complete angle = 360°
∵ 1000 ≡ 360°

 ∴ 100 ≡ 360 × 100 = 36° 1000

From above clear that this sector represents the accidents involving stationary vehicles .
So , stationary vehicles having in diagram = 5 Boxes = 5 × 20 = 100 units
Hence , required answer is option D .