Introduction to Data Interpretation
Direction: This is a piechart for the data on A, B, O, AB blood groups of 150 donors. Observe the piechart and answer the questions.
 The number of persons having either blood group ‘A’ or blood group ‘B’ is :

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As per the given pie chart in question ,
Total number of A, B, O and AB blood groups of donors = 150
The corresponding angle of blood group ‘B’ donors = 129.6°
The corresponding angle of blood group ‘A’ donors = 72°
The corresponding angle of all blood group donors = 360°Persons with blood group A or B = (129.6 + 72) × 150 360
Correct Option: A
As per the given pie chart in question ,
Total number of A, B, O and AB blood groups of donors = 150
The corresponding angle of blood group ‘B’ donors = 129.6°
The corresponding angle of blood group ‘A’ donors = 72°
The corresponding angle of all blood group donors = 360°Persons with blood group A or B = (129.6 + 72) × 150 360 Persons with blood group A or B = 201.6 × 150 = 84 360
 The number of donors having blood group ‘O’ is :

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As per the given pie chart in question ,
Total number of A, B, O and AB blood groups of donors = 150
The corresponding angle of blood group ‘O’ donors = 100.8°
The corresponding angle of all blood group donors = 360°Number of blood group ‘O’ donors = The corresponding angle of blood group ‘O’ donors × Total number of all blood groups of donors The corresponding angle of all blood group donors
Correct Option: B
As per the given pie chart in question ,
Total number of A, B, O and AB blood groups of donors = 150
The corresponding angle of blood group ‘O’ donors = 100.8°
The corresponding angle of all blood group donors = 360°Number of blood group ‘O’ donors = The corresponding angle of blood group ‘O’ donors × Total number of all blood groups of donors The corresponding angle of all blood group donors Number of blood group ‘O’ donors = 100.8 × 150 = 42 360
Direction: The pie chart shows Distribution of Special Children Population during the year 199496. Study the piechart and answer the following questions.
 What is the respective ratio between language disorder and the average of the remaining disorder cases?

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According to given pie chart in question ,
Total number of children = 871 + 222 + 275 + 657 + 60 = 2085
Number of children with language disorder = 657
Number of children with disorders except language disorder = Total number of children : Number of children with language disorder
Number of children with disorders except language disorder = 2085 – 657 = 1428Correct Option: A
According to given pie chart in question ,
Total number of children = 871 + 222 + 275 + 657 + 60 = 2085
Number of children with language disorder = 657
Number of children with disorders except language disorder = Total number of children : Number of children with language disorder
Number of children with disorders except language disorder = 2085 – 657 = 1428Their average = 1428 = 357 4
Required ratio = 657 : 357 = 219 : 119
 Find the ratio between articulatory disorder and speech disorder cases.

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On the basis of given pie chart in question ,
Total number of children with articulatory disorder = 60
and Total number of children with speech disorder = 275
Required ratio = Total number of children with articulatory disorder : Total number of children with speech disorderCorrect Option: D
On the basis of given pie chart in question ,
Total number of children with articulatory disorder = 60
and Total number of children with speech disorder = 275
Required ratio = Total number of children with articulatory disorder : Total number of children with speech disorder
Required ratio = 60 : 275 = 12 : 55
 What is the average number of cases in different types of special children during the year 199496?

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As per the given pie chart in question ,
Total number of children = 871 + 222 + 275 + 657 + 60 = 2085
Total number types of special children = 5Required average = Total number of children Total number types of special children
Correct Option: A
As per the given pie chart in question ,
Total number of children = 871 + 222 + 275 + 657 + 60 = 2085
Total number types of special children = 5Required average = Total number of children Total number types of special children Required average = 2085 = 417 5