## Introduction to Data Interpretation

#### Data Interpretation

Direction: The histogram, given below, shows the number of families of a locality having various daily incomes, as obtained by a survey. Observe the graph and answer the questions based on it. 1. The number of families, whose daily incomes are below \$ 200, is

1. As per the given above bar graph , we can see
Number of families in daily income interval 0-100 = 15
Number of families in daily income interval 100-200 = 10

##### Correct Option: A

As per the given above bar graph , we can see
Number of families in daily income interval 0-100 = 15
Number of families in daily income interval 100-200 = 10
Required number of families = 15 + 10 = 25

1. The number of families, whose daily incomes are \$ 800 or above, is

1. According to given bar graph , we have
Number of families in daily income interval 800-900 = 40
Number of families in daily income interval 900-1000 = 15
Required number of families = Number of families in daily income interval 800-900 + Number of families in daily income interval 900-1000

##### Correct Option: B

According to given bar graph , we have
Number of families in daily income interval 800-900 = 40
Number of families in daily income interval 900-1000 = 15
Required number of families = Number of families in daily income interval 800-900 + Number of families in daily income interval 900-1000
Required number of families = 40 + 15 = 55

1. In all, how many families were surveyed?

1. As per the given above bar graph , we have
Number of families who have daily income interval 0-100 = 15
Number of families who have daily income interval 100-200 = 10
Number of families who have daily income interval 200-300 = 40
Number of families who have daily income interval 300-400 = 5
Number of families who have daily income interval 400-500 = 20
Number of families who have daily income interval 500-600 = 30
Number of families who have daily income interval 600-700 = 15
Number of families who have daily income 700-800 = 10
Number of families who have daily income interval 800-900 = 40
Number of families who have daily income interval 900-1000 = 15

##### Correct Option: C

Number of families who have daily income interval 0-100 = 15
Number of families who have daily income interval 100-200 = 10
Number of families who have daily income interval 200-300 = 40
Number of families who have daily income interval 300-400 = 5
Number of families who have daily income interval 400-500 = 20
Number of families who have daily income interval 500-600 = 30
Number of families who have daily income interval 600-700 = 15
Number of families who have daily income 700-800 = 10
Number of families who have daily income interval 800-900 = 40
Number of families who have daily income interval 900-1000 = 15
Total number of families = 15 + 10 + 40 + 5 + 20 + 30 + 15 + 10 + 40 + 15 = 200

Direction: Study the histogram of weight distribution of different men and answer question-based on it. 1. Average number of men per interval who participated in this survey is

1. From the given above bar graph , we can see
Total number of men per interval = 100 + 220 + 300 + 200 + 250 = 1070
Number of men = 5

 Required average = Total number of men per interval Number of men

##### Correct Option: C

From the given above bar graph , we can see
Total number of men per interval = 100 + 220 + 300 + 200 + 250 = 1070
Number of men = 5

 Required average = Total number of men per interval Number of men

 Required average = 1070 = 214 5

Direction: Study the graph carefully and answer the questions.
The graph shows production of an item (in tonnes) during certain years 1. The production from 2003 – 04 to 2007 – 08 increased by

1. On the basis of given graph in question ,
The production in 2007-08 = 1200
The production in 2003-04 = 600
Increase in production = 1200 - 600 = 600

 Required percentage increase = Increase in production × 100 The production in 2003-04

##### Correct Option: D

On the basis of given graph in question ,
The production in 2007-08 = 1200
The production in 2003-04 = 600
Increase in production = 1200 - 600 = 600

 Required percentage increase = Increase in production × 100 The production in 2003-04

 Required percentage increase = 600 × 100 = 100% 600