## Introduction to Data Interpretation

#### Data Interpretation

Direction: In the given pie-chart, the comparative study of the production of Rice, Wheat, Sugar and Tea of a country is given. Study the pie-chart and answer the following questions.

1. The production of rice and tea is more/greater than production of wheat by

1. According to given pie chart in question ,
Production percentage of rice and tea = ( 55 + 5 )% = 60%
Production percentage of wheat = 30%
Change in Production = 60 - 30 = 30%

 Required percentage = Change in Production × 100 Production percentage of wheat

##### Correct Option: B

According to given pie chart in question ,
Production percentage of rice and tea = ( 55 + 5 )% = 60%
Production percentage of wheat = 30%
Change in Production = 60 - 30 = 30%

 Required percentage = Change in Production × 100 Production percentage of wheat

 Required percentage = 30 × 100 = 100% 30

1. From this diagram, the ratio of sum of wheat and sugar production to difference in production of rice and tea is

1. On the basis of given pie chart in question ,
Sum of wheat and sugar production = ( 30 + 10 )%
Difference in production of rice and tea = ( 55 - 5 )%
Let the total production of food grains be y units.

 ∴ Required ratio = (30 + 10)y : (55 - 5)y 100 100

##### Correct Option: A

On the basis of given pie chart in question ,
Sum of wheat and sugar production = ( 30 + 10 )%
Difference in production of rice and tea = ( 55 - 5 )%
Let the total production of food grains be y units.

 ∴ Required ratio = (30 + 10)y : (55 - 5)y 100 100

Required ratio = 40 : 50 = 4 : 5

Direction: This is a pie-chart for the data on A, B, O, AB blood groups of 150 donors. Observe the pie-chart and answer the questions.

1. The ratio of donors having blood group ‘A’ to the average of the donors having blood group ‘O’, ‘B’ and ‘AB’ is :

1. As per the given pie chart in question ,
The corresponding angle of having blood group ‘A’ donors = 72°
Sum of the corresponding angle of having blood group 'O’, ‘B’ and ‘AB’ donors = ( 100.8 + 129.6 + 57.6 )°
Required ratio = The corresponding angle of having blood group ‘A’ donors : Average of the corresponding angle of having blood group 'O’, ‘B’ and ‘AB’ donors

 Required ratio = 72° : 100.8 + 129.6 + 57.6 ° 3

##### Correct Option: D

As per the given pie chart in question ,
The corresponding angle of having blood group ‘A’ donors = 72°
Sum of the corresponding angle of having blood group 'O’, ‘B’ and ‘AB’ donors = ( 100.8 + 129.6 + 57.6 )°
Required ratio = The corresponding angle of having blood group ‘A’ donors : Average of the corresponding angle of having blood group 'O’, ‘B’ and ‘AB’ donors

 Required ratio = 72° : 100.8 + 129.6 + 57.6 ° 3

 Required ratio = 72° : 288 ° = 84 3

Required ratio = 72° : 96° = 3 : 4

1. What is the percentage of donors having blood group ‘AB’?

1. On the basis of given pie chart in question ,
The corresponding angle of blood group ‘AB’ donors = 57.6°
The corresponding angle of all blood group donors = 360°
As we know that , 360° ≡ 100%

 ∴ 1° ≡ 100 % 360

##### Correct Option: C

On the basis of given pie chart in question ,
The corresponding angle of blood group ‘AB’ donors = 57.6°
The corresponding angle of all blood group donors = 360°
As we know that , 360° ≡ 100%

 ∴ 1° ≡ 100 % 360

 ∴ 57.6° ≡ 57.6 × 100 % = = 16% 360

1. The number of persons having either blood group ‘A’ or blood group ‘B’ is :

1. As per the given pie chart in question ,
Total number of A, B, O and AB blood groups of donors = 150
The corresponding angle of blood group ‘B’ donors = 129.6°
The corresponding angle of blood group ‘A’ donors = 72°
The corresponding angle of all blood group donors = 360°

 Persons with blood group A or B = (129.6 + 72) × 150 360

##### Correct Option: A

As per the given pie chart in question ,
Total number of A, B, O and AB blood groups of donors = 150
The corresponding angle of blood group ‘B’ donors = 129.6°
The corresponding angle of blood group ‘A’ donors = 72°
The corresponding angle of all blood group donors = 360°

 Persons with blood group A or B = (129.6 + 72) × 150 360

 Persons with blood group A or B = 201.6 × 150 = 84 360