Introduction to Data Interpretation
Direction: Study the following bar graph showing the percentage of children who can read at firstgrade level, grouped by their grade level in an Indian state.
For example, in 2008, 82% of the children from Standard 3 could read a text from Standard 1. Now answer the following question based on this graph.
 In the year 2010, what is the approximate value of average of all Std 1, 2, 3, 4, 5 children who could read the Std 1 text?

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From the given bar diagram , we see that the number of children in respective standard is not known.
Correct Option: D
From the given bar diagram , we see that the number of children in respective standard is not known.So , required answer is option D .
Direction: The data given in Bar diagram relate to the department wise admission of 320 students to B.Sc. (Honours) firstyear classes of a certain college in the given five subjects. Study the graph and answer the questions.
 The subject which the female students are finding difficult as compared to other subjects is :

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It is obvious from the bar diagram.
The percentage of females in Chemistry is least.Correct Option: D
It is obvious from the bar diagram.
The percentage of females in Chemistry is least.
Thus , option D is correct answer .
 The total number of male students who got admitted in Mathematics and Economics as compared to the total number of female students getting admission in Mathematics and Economics is :

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According to given bar graph , we have
In Economics and Mathematics :
Total male students = 30 + 32 = 62
Total female students = 20 + 34 = 54
Difference = 62 – 54 = 8∴ Required percent = Difference × 100 Total female students
Correct Option: C
According to given bar graph , we have
In Economics and Mathematics :
Total male students = 30 + 32 = 62
Total female students = 20 + 34 = 54
Difference = 62 – 54 = 8∴ Required percent = Difference × 100 Total female students Required percent = 8 × 100 54
∴ Required percent = 14.8% more
 The difference of the choice of the subject between male and female students is maximum for the subject.

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From the given bar diagram , we see that the difference of the choice of the subject between male and female students is maximum for the chemistry subject
Number of male students in chemistry = 61
Number of female students in chemistry = 24
Required Difference = Number of female students in chemistry – Number of male students in chemistryCorrect Option: D
From the given bar diagram , we see that the difference of the choice of the subject between male and female students is maximum for the chemistry subject
Number of male students in chemistry = 61
Number of female students in chemistry = 24
Required Difference = Number of female students in chemistry – Number of male students in chemistry
Difference = 61 – 24 = 37
Hence , required subject is chemistry .
 The subject in which the difference in the number of male and female students is minimum in :

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On the basis of given graph in question ,
Number of male students in statistics = 15
Number of female students in statistics = 16
Required Difference = Number of female students in statistics – Number of male students in statisticsCorrect Option: C
On the basis of given graph in question ,
Number of male students in statistics = 15
Number of female students in statistics = 16
Required Difference = Number of female students in statistics – Number of male students in statistics
Required Difference = 16 – 15 = 1