Introduction to Data Interpretation
Direction: In the following questions, the Graph shows the demand and production of different companies. Study the graph and answer the questions.
 The demand of company B is what percentage of the production of company F?

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As per the given graph in question ,
The demand of company B = 3150 units
The production of company F = 4500 unitsRequired percentage = The demand of company B × 100 The production of company F
Correct Option: B
As per the given graph in question ,
The demand of company B = 3150 units
The production of company F = 4500 unitsRequired percentage = The demand of company B × 100 The production of company F Required percentage = 3150 × 100 = 70 % 4500
Direction: The marks obtained by 273 examinees are shown by the frequency polygon. Given that mean marks is 59.5. Study the frequency polygon and answer the given questions.
 If 40 is the pass marks, percentage of students failed is

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According to given graph in question ,
Number of students who got 40% or less marks = 2 + 4 + 12 + 26 = 44
Total number of students = 2 + 4 + 12 + 26 + 35 + 42 + 72 + 48 + 24 + 8 = 273∴ Required percent = Number of students who got 40% or less marks × 100 Total number of students
Correct Option: C
According to given graph in question ,
Number of students who got 40% or less marks = 2 + 4 + 12 + 26 = 44
Total number of students = 2 + 4 + 12 + 26 + 35 + 42 + 72 + 48 + 24 + 8 = 273∴ Required percent = Number of students who got 40% or less marks × 100 Total number of students ∴ Required percentage = 44 × 100 = 16.11 % 273
 Percentage of the students who got marks above 60% and below 80% is

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From the above given graph , we can see
Number of students who got marks above 60% and below 80% = 72 + 48 = 120
Total number of students = 2 + 4 + 12 + 26 + 35 + 42 + 72 + 48 + 24 + 8 = 273∴ Required percent = Number of students who got marks above 60% and below 80% × 100 Total number of students
Correct Option: A
From the above given graph , we can see
Number of students who got marks above 60% and below 80% = 72 + 48 = 120
Total number of students = 2 + 4 + 12 + 26 + 35 + 42 + 72 + 48 + 24 + 8 = 273∴ Required percent = Number of students who got marks above 60% and below 80% × 100 Total number of students ∴ Required percentage = 120 × 100 = 43.95 % 273
 Percentage of the students who get above 80% marks is

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On the basis of given graph in question ,
Number of students who got above 80% marks = 24 + 8 = 32
Total number of students = 2 + 4 + 12 + 26 + 35 + 42 + 72 + 48 + 24 + 8 = 273∴ Required percent = Number of students who got above 80% marks × 100 Total number of students
Correct Option: D
On the basis of given graph in question ,
Number of students who got above 80% marks = 24 + 8 = 32
Total number of students = 2 + 4 + 12 + 26 + 35 + 42 + 72 + 48 + 24 + 8 = 273∴ Required percent = Number of students who got above 80% marks × 100 Total number of students ∴ Required percent = 32 × 100 = 11.72 % 273
 The number of examinees getting more than average marks is

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As per the given line graph in question ,
Given that , mean marks is 59.5 .
Number of examinees getting more than average marks = 72 + 48 + 24 + 8 = 152Correct Option: C
As per the given line graph in question ,
Given that , mean marks is 59.5
Number of examinees getting more than average marks = 72 + 48 + 24 + 8 = 152
Hence , required answer is 152.