Introduction to 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.
 The number of families, whose daily incomes are below $ 200, is

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As per the given above bar graph , we can see
Number of families in daily income interval 0100 = 15
Number of families in daily income interval 100200 = 10Correct Option: A
As per the given above bar graph , we can see
Number of families in daily income interval 0100 = 15
Number of families in daily income interval 100200 = 10
Required number of families = 15 + 10 = 25
 The number of families, whose daily incomes are $ 800 or above, is

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According to given bar graph , we have
Number of families in daily income interval 800900 = 40
Number of families in daily income interval 9001000 = 15
Required number of families = Number of families in daily income interval 800900 + Number of families in daily income interval 9001000Correct Option: B
According to given bar graph , we have
Number of families in daily income interval 800900 = 40
Number of families in daily income interval 9001000 = 15
Required number of families = Number of families in daily income interval 800900 + Number of families in daily income interval 9001000
Required number of families = 40 + 15 = 55
 In all, how many families were surveyed?

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As per the given above bar graph , we have
Number of families who have daily income interval 0100 = 15
Number of families who have daily income interval 100200 = 10
Number of families who have daily income interval 200300 = 40
Number of families who have daily income interval 300400 = 5
Number of families who have daily income interval 400500 = 20
Number of families who have daily income interval 500600 = 30
Number of families who have daily income interval 600700 = 15
Number of families who have daily income 700800 = 10
Number of families who have daily income interval 800900 = 40
Number of families who have daily income interval 9001000 = 15Correct Option: C
Number of families who have daily income interval 0100 = 15
Number of families who have daily income interval 100200 = 10
Number of families who have daily income interval 200300 = 40
Number of families who have daily income interval 300400 = 5
Number of families who have daily income interval 400500 = 20
Number of families who have daily income interval 500600 = 30
Number of families who have daily income interval 600700 = 15
Number of families who have daily income 700800 = 10
Number of families who have daily income interval 800900 = 40
Number of families who have daily income interval 9001000 = 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 questionbased on it.
 Average number of men per interval who participated in this survey is

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From the given above bar graph , we can see
Total number of men per interval = 100 + 220 + 300 + 200 + 250 = 1070
Number of men = 5Required 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 = 5Required 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
 The production from 2003 – 04 to 2007 – 08 increased by

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On the basis of given graph in question ,
The production in 200708 = 1200
The production in 200304 = 600
Increase in production = 1200  600 = 600Required percentage increase = Increase in production × 100 The production in 200304
Correct Option: D
On the basis of given graph in question ,
The production in 200708 = 1200
The production in 200304 = 600
Increase in production = 1200  600 = 600Required percentage increase = Increase in production × 100 The production in 200304 Required percentage increase = 600 × 100 = 100% 600