## Introduction to Data Interpretation

#### Data Interpretation

Direction: A bar graph showing the heights of six mountain peaks is given below. Study the bar graph and answer the questions.

1. Which peak is the second highest?

1. As per the given bar graph ,
Height of mountain peak C = 8600 metre

##### Correct Option: B

As per the given bar graph ,
Height of mountain peak C = 8600 metre
Hence , the second highest peak is C .

1. The average height of all the peaks (in metre) is

1. According to given bar graph , we have
Total height of all the peaks = 8200 + 6000 + 8600 + 7500 + 8800 + 6500
Number of mountain peaks = 6

 Required average height = Total height of all the peaks Number of mountain peaks

 Required average height = 8200 + 6000 + 8600 + 7500 + 8800 + 6500 6

##### Correct Option: B

According to given bar graph , we have
Total height of all the peaks = 8200 + 6000 + 8600 + 7500 + 8800 + 6500
Number of mountain peaks = 6

 Required average height = Total height of all the peaks Number of mountain peaks

 Required average height = 8200 + 6000 + 8600 + 7500 + 8800 + 6500 6

 Required average height = 45600 = 7600 metre 6

Direction: Study the bar diagram and answer the following questions. The bar diagram shows the number of bicycles parked in the parking space of a hall at various points of time.

1. How many times, as mentioned in the graph, is the number of parked cycles above average?

1. On the basis of given graph in question , we get
The average = 60
The number of parked cycles above average :

##### Correct Option: D

On the basis of given graph in question , we get
The average = 60
The number of parked cycles above average :
Required answer = 6 times i.e., 95, 75, 85, 65, 75 and 65.

1. What is the average number of parked cycles as seen from the graph?

1. On the basis of given graph in question ,
Number of cycles parked from 9 am to 8 pm.
= 95 + 75 + 85 + 65 + 75 + 55 + 65 + 45 + 55 + 35 + 45 + 25 = 720
Total time = 12 hours

 Required average = Number of cycles parked from 9 am to 8 pm = 720 Total time 12

##### Correct Option: D

On the basis of given graph in question ,
Number of cycles parked from 9 am to 8 pm.
= 95 + 75 + 85 + 65 + 75 + 55 + 65 + 45 + 55 + 35 + 45 + 25 = 720
Total time = 12 hours

 Required average = Number of cycles parked from 9 am to 8 pm = 720 = 60 Total time 12

1. What is the percentage decrease in the number of parked cycles between 7 pm and 8 pm? (in whole number)

1. As per the given bar graph ,
The number of parked cycles at 7 pm
= 45
And The number of parked cycles at 8 pm = 25
Decrease = 45 - 25 = 20

 Required percentage decrease = Decrease × 100 The number of parked cycles at 7 pm

##### Correct Option: D

As per the given bar graph ,
The number of parked cycles at 7 pm
= 45
And The number of parked cycles at 8 pm = 25
Decrease = 45 - 25 = 20

 Required percentage decrease = Decrease × 100 The number of parked cycles at 7 pm

 Required percentage decrease = 20 × 100 = 44.44% 45