## Introduction to Data Interpretation

#### Data Interpretation

Direction: The following bar diagram analyse the sale of a company from 2000 to 2005, Examine the diagram and answer the questions.

1. The sales in 2001 are how many times those of 2002?

1. On the basis of given graph in question ,
The sales in 2001 = \$ 320 thousands
The sales in 2002 = \$ 400 thousands

 Required answer = The sales in 2001 The sales in 2002

##### Correct Option: B

On the basis of given graph in question ,
The sales in 2001 = \$ 320 thousands
The sales in 2002 = \$ 400 thousands

 Required answer = The sales in 2001 The sales in 2002

 Required answer = 320 = 0.8 400

1. By what amount are the sales in 2003 more than those in 2001?

1. From the given bar diagram , we see
The sales in 2003 = \$ 420 × 1000
The sales in 2001 = \$ 320 × 1000
Required difference = The sales in 2003 - The sales in 2001

##### Correct Option: B

From the given bar diagram , we see
The sales in 2003 = \$ 420 × 1000
The sales in 2001 = \$ 320 × 1000
Required difference = The sales in 2003 - The sales in 2001
∴ Required difference = (420 – 320) × 1000 = \$ 100000

1. In which year did the sales show the least decrease to that of the preceding year?

1. On the basis of given graph in question ,
The sale in year 2000 = 340
The sale in year 2001 = 320
Decrease = The sale in year 2000 - The sale in year 2001 = 340 - 320 = 20

 Percentage decrease(2001) = Decrease × 100 The sale in year 2000

 Percentage decrease(2001) = 20 × 100 = 6% 340

The sale in year 2004 = 440
The sale in year 2005 = 400
Decrease = The sale in year 2004 - The sale in year 2005 = 440 - 400 = 40
 Percentage decrease(2005) = Decrease × 100 The sale in year 2004

##### Correct Option: C

On the basis of given graph in question ,
The sale in year 2000 = 340
The sale in year 2001 = 320
Decrease = The sale in year 2000 - The sale in year 2001 = 340 - 320 = 20

 Percentage decrease(2001) = Decrease × 100 The sale in year 2000

 Percentage decrease(2001) = 20 × 100 = 6% 340

The sale in year 2004 = 440
The sale in year 2005 = 400
Decrease = The sale in year 2004 - The sale in year 2005 = 440 - 400 = 40
 Percentage decrease(2005) = Decrease × 100 The sale in year 2004

 Percentage decrease (2005) = 40 × 100 = 9% 440

∴ % decrease is least in 2001

1. The sales in 2004 are what percentage of those in 2002?

1. As per the given bar graph ,
The sales in 2004 = 440
The sales in 2002 = 400

 Required percentage = The sales in 2004 × 100 The sales in 2002

##### Correct Option: C

As per the given bar graph ,
The sales in 2004 = 440
The sales in 2002 = 400

 Required percentage = The sales in 2004 × 100 The sales in 2002

 Required percentage = 440 × 100 = 110% 400

Direction: The bar graph given below shows the total number of students in six sections of a class VI of a certain school. Using this graph, answer the question.

1. The percentage of students in section C out of the total students in class VI is approximately

1. On the basis of given graph in question ,
Number of the students in section C = 31
Total number of the students in class VI = 34 + 35 + 31 + 32 + 33 + 34 = 199

 Required percentage = Number of the students in section C × 100 Total number of the students in class VI

##### Correct Option: D

On the basis of given graph in question ,
Number of the students in section C = 31
Total number of the students in class VI = 34 + 35 + 31 + 32 + 33 + 34 = 199

 Required percentage = Number of the students in section C × 100 Total number of the students in class VI

 Required percentage = 31 × 100 = 15.57% 199