## Introduction to Data Interpretation

#### Data Interpretation

Direction: Study the following bar diagram carefully and answer the four questions.

1. The average production (in thousand) of the company B over the years 2009, 2011, 2012 is

1. On the basis of given graph in question ,
Total production of the company B in given years = 72000 + 90000 + 100000 = 262000 = 262 thousands
Number of given years = 3

 Required average production = Total production of the company B in given years Number of given years

##### Correct Option: A

On the basis of given graph in question ,
Total production of the company B in given years = 72000 + 90000 + 100000 = 262000 = 262 thousands
Number of given years = 3

 Required average production = Total production of the company B in given years Number of given years

 Required average production = 262 = 87.33 thousands 3

1. In which year for the company A the percentage increase of production of buses with respect to the previous year is maximum?

1. From the given bar diagram , we see
Production of buses by company A in 2009 = 64000
Production of buses by company A in 2010 = 70000
Increase in production = 70000 - 64000 = 6000

 Percentage increase ⇒ Increase in production × 100 Production of buses by company A

 Percentage increase in year 2010 ⇒ 6000 × 100 ≈ 9.4 64000

Production of buses by company A in 2010 = 70000
Production of buses by company A in 2011 = 77000
Increase in production = 77000 - 70000 = 7000
 Percentage increase in year 2011 ⇒ 7000 × 100 = 10 70000

Production of buses by company A in 2011 = 77000
Production of buses by company A in 2012 = 85000
Increase in production = 85000 - 77000 = 8000

##### Correct Option: B

From the given bar diagram , we see
Production of buses by company A in 2009 = 64000
Production of buses by company A in 2010 = 70000
Increase in production = 70000 - 64000 = 6000

 Percentage increase ⇒ Increase in production × 100 Production of buses by company A

 Percentage increase in year 2010 ⇒ 6000 × 100 ≈ 9.4 64000

Production of buses by company A in 2010 = 70000
Production of buses by company A in 2011 = 77000
Increase in production = 77000 - 70000 = 7000
 Percentage increase in year 2011 ⇒ 7000 × 100 = 10 70000

Production of buses by company A in 2011 = 77000
Production of buses by company A in 2012 = 85000
Increase in production = 85000 - 77000 = 8000
 Percentage increase in year 2012 ⇒ 8000 × 100 ≈ 10.4 77000

Production of buses by company A in 2012 = 85000
Production of buses by company A in 2013 = 93000
Increase in production = 93000 - 85000 = 8000
 Percentage increase in year 2013 ⇒ 8000 × 100 ≈ 9.5 85000

Hence , correct answer is 2012 year .

Direction: Study the following bar–diagram and answer the questions.

1. The total units consumption in the year 2013 during these 5 months, in respect of the same in the previous year has been

1. According to given bar graph , we have
Total consumption in 2012 = 2200 units
Total consumption in 2013 = 2300 units
Total Increase = 2300 - 2200 = 100 units

 Percentage increase = Total Increase × 100 Total consumption in 2012

##### Correct Option: E

According to given bar graph , we have
Total consumption in 2012 = 2200 units
Total consumption in 2013 = 2300 units
Total Increase = 2300 - 2200 = 100 units

 Percentage increase = Total Increase × 100 Total consumption in 2012

 Percentage increase = 100 × 100 = 50 = 4.5 % 2200 11

1. The maximum difference in the units consumption between these two years has been found in the month of

1. From the given bar diagram , we see that
In the month of July, Difference = Electric consumption in 2012 - Electric consumption in 2013
Difference = 600 – 550 = 50 units
In the month of August, Difference = Electric consumption in 2012 - Electric consumption in 2013
Difference = 700 – 500 = 200 units.
In the month of September, Difference = Electric consumption in 2012 - Electric consumption in 2013
Difference = 400 – 400 = 0 units.
In the month of October, Difference = Electric consumption in 2013 - Electric consumption in 2012
Difference = 350 – 300 = 50 units.

##### Correct Option: D

From the given bar diagram , we see that
In the month of July, Difference = Electric consumption in 2012 - Electric consumption in 2013
Difference = 600 – 550 = 50 units
In the month of August, Difference = Electric consumption in 2012 - Electric consumption in 2013
Difference = 700 – 500 = 200 units.
In the month of September, Difference = Electric consumption in 2012 - Electric consumption in 2013
Difference = 400 – 400 = 0 units.
In the month of October, Difference = Electric consumption in 2013 - Electric consumption in 2012
Difference = 350 – 300 = 50 units.
In the month of November, Difference = Electric consumption in 2012 - Electric consumption in 2013
Difference = 500 – 200 = 300 units
Hence , required month is November .

1. The average electric consumption by the family during these 5 months in 2013 is

1. From the given bar diagram , we see
Total electric consumption in given months = 550 + 500 + 400 + 350 + 500 = 2300 units
Number of given months = 5

 Average units consumption in the year 2013 = Total electric consumption in given months Number of given months

##### Correct Option: E

From the given bar diagram , we see
Total electric consumption in given months = 550 + 500 + 400 + 350 + 500 = 2300 units
Number of given months = 5

 Average units consumption in the year 2013 = Total electric consumption in given months Number of given months

 Average units consumption in the year 2013 = 2300 = 460 units 5