Introduction to Data Interpretation
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.
Direction: Study the following graph and answer the questions.
- In 2005, the exports of company X were double that of company Y in that year. If the imports of company X during the year were $ 180 million, what was the amount (in million) of imports of company Y during the year?
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From the above given graph ,
In the year 2005, Imports of company X = $ 180 million
Exports = 1.75 × 180 = $ 315 million
Exports of company Y = $ 157.5 million∴ Imports of company Y = 157.5 0.75
Correct Option: B
From the above given graph ,
In the year 2005, Imports of company X = $ 180 million
Exports = 1.75 × 180 = $ 315 million
Exports of company Y = $ 157.5 million∴ Imports of company Y = 157.5 0.75
∴ Imports of company Y = $ 210 million
