## Introduction to Data Interpretation

#### Data Interpretation

Direction: Study the double bar graph given below and answer the questions. 1. The ratio of the participants in exhibition of class IX with the total participants of class IX is

1. On the basis of given graph in question ,
Number of participants in exhibition of class IX = 75
Total participants of class IX = 75 + 30 = 105

##### Correct Option: A

On the basis of given graph in question ,
Number of participants in exhibition of class IX = 75
Total participants of class IX = 75 + 30 = 105
Required ratio = 75 : (75 + 30) = 75 : 105 = 5 : 7

1. The average of the number of students participating in exhibition is

1. From the given bar diagram , we see
Total number of students Participating in exhibition = 45 + 30 + 60 + 75
Number of classes = 4

 Average number of students Participating in exhibition = 45 + 30 + 60 + 75 = 210 4 4

##### Correct Option: B

From the given bar diagram , we see
Total number of students Participating in exhibition = 45 + 30 + 60 + 75
Number of classes = 4

 Average number of students Participating in exhibition = 45 + 30 + 60 + 75 = 210 4 4

Average number of students Participating in exhibition = 52.5

1. The average of the number of students participating in cultural events is

1. As per the given bar graph , we have
Total number of students participating in cultural events = 60 + 45 + 45 + 30
Number of classes = 4

 Average number of students participating in cultural events = 60 + 45 + 45 + 30 4

##### Correct Option: C

As per the given bar graph , we have
Total number of students participating in cultural events = 60 + 45 + 45 + 30
Number of classes = 4

 Average number of students participating in cultural events = 60 + 45 + 45 + 30 4

 Average number of students participating in cultural events = 180 = 45 4

1. The class having maximum number of participants in exhibition is

1. On the basis of given graph in question ,From class IX 75 students participated in exhibition.

##### Correct Option: A

On the basis of given graph in question , From class IX 75 students participated in exhibition.
Hence , Class IX is required answer for this question .

Direction: Study the bar diagram and answer the questions. 1. The respective ratio of number of girls from Philosophy Department to the number of girls from Psychology Department is

1. According to given bar graph , we have
Number of girls from Philosophy Department = 140
Number of girls from Psychology Department = 220
Required ratio = Number of girls from Philosophy Department : Number of girls from Psychology Department

##### Correct Option: A

According to given bar graph , we have
Number of girls from Philosophy Department = 140
Number of girls from Psychology Department = 220
Required ratio = Number of girls from Philosophy Department : Number of girls from Psychology Department
Required ratio = 140 : 220 = 7 : 11