The following table shows the details about the expenditures (in percentages) of Indian Hotel industries under various components. Component of Expenditure Percentage of expenditure Administrative 30 Salary 20 Maintenance 14 Food and Beverages 12 Electricity 16 Savings 8 Draw pie diagram to represent the data. Also find the angle of the sector corresponding to salary.

We have, Class frequency = 100 Component of Expenditure Percentage of expenditure Angle of the circle Administrative 30 30 100 × 360 = 108 0 Salary 20 20 100 × 360 = 72 0 Maintenance 14 14 100 × 360 = 50 . 4 0 Food and Beverages 12 12 100 × 360 = 43 . 2 0 Electricity 16 16 100 × 360 = 57 . 6 0 Savings 8 8 100 × 360 = 28 . 8 0 Thus the pie chart will be: From the table above we observe that the angle for Salary is 72 0

The following table shows the details about the expenditures (in percentages) of Indian Hotel industries under various components. Component of Expenditure Percentage of expenditure Administrative 30 Salary 20 Maintenance 14 Food and Beverages 12 Electricity 16 Savings 8 Draw pie diagram to represent the data. Also find the difference between the angles corresponding to Electricity and Maintenance.

We have, Class frequency = 100 Component of Expenditure Percentage of expenditure Angle of the circle Administrative 30 30 100 × 360 = 108 0 Salary 20 20 100 × 360 = 72 0 Maintenance 14 14 100 × 360 = 50 . 4 0 Food and Beverages 12 12 100 × 360 = 43 . 2 0 Electricity 16 16 100 × 360 = 57 . 6 0 Savings 8 8 100 × 360 = 28 . 8 0 Thus the pie chart will be: From the table above we observe that the difference between the angles corresponding to Electricity and Maintenance is = 57 . 6 - 50 . 4 = 7 . 2

Details about Stipend (in ₹ ) given to the apprentices in an organization are given below. Draw less than Ogive to the data. Stipend in ₹ Number of apprentices 2000 - 3000 4 3000 - 4000 6 4000 - 5000 13 5000 - 6000 25 6000 - 7000 32 7000 - 8000 19 8000 - 9000 8 9000 - 10000 3 Estimate from the curve, the number of apprentices whose stipend is less than ₹ 5500

We have, Stipend in ₹ (Less than) Cumulative frequency 3000 4 4000 10 5000 23 6000 48 7000 80 8000 99 9000 107 10000 110 From the graph above we can observe that 38 apprentices get stipend less than ₹ 5500

Details about Stipend (in ₹ ) given to the apprentices in an organization are given below. Draw less than Ogive to the data. Stipend in ₹ Number of apprentices 2000 - 3000 4 3000 - 4000 6 4000 - 5000 13 5000 - 6000 25 6000 - 7000 32 7000 - 8000 19 8000 - 9000 8 9000 - 10000 3 Find the median of the data

We have, Stipend in ₹ (Less than) Cumulative frequency 3000 4 4000 10 5000 23 6000 48 7000 80 8000 99 9000 107 10000 110 From the graph above we can observe that the median is ₹ 6300

MEDIUM

11th Tamil Nadu Board

IMPORTANT

Earn 100

Write down the significance of diagrams and graphs.

Important Questions on Diagrammatic and Graphical Representation of Data

MEDIUM

11th Tamil Nadu Board

IMPORTANT

Statistics Standard 11>Chapter 4 - Diagrammatic and Graphical Representation of Data>EXERCISE>Q 31

Mention any two features of tabulated data distinguishing it from diagrams and graphs.

MEDIUM

11th Tamil Nadu Board

IMPORTANT

Statistics Standard 11>Chapter 4 - Diagrammatic and Graphical Representation of Data>EXERCISE>Q 32

Distinguish the two types of Ogives.

EASY

11th Tamil Nadu Board

IMPORTANT

Statistics Standard 11>Chapter 4 - Diagrammatic and Graphical Representation of Data>EXERCISE>Q 33

What are the general rules to be followed for constructing diagrams?

MEDIUM

11th Tamil Nadu Board

IMPORTANT

Statistics Standard 11>Chapter 4 - Diagrammatic and Graphical Representation of Data>EXERCISE>Q 38

The following table shows the number of students studying in three schools, preferred Walking/Cycling to go to their schools. Draw multiple bar diagram to the data.

Preferences of Students	School A	School B	School C
Walking	$400$	$550$	$150$
Cycling	$450$	$250$	$350$

HARD

11th Tamil Nadu Board

IMPORTANT

Statistics Standard 11>Chapter 4 - Diagrammatic and Graphical Representation of Data>EXERCISE>Q 41

The following table shows the details about the expenditures (in percentages) of Indian Hotel industries under various components.

Component of Expenditure	Percentage of expenditure
Administrative	$30$
Salary	$20$
Maintenance	$14$
Food and Beverages	$12$
Electricity	$16$
Savings	$8$

Draw pie diagram to represent the data. Also find the angle of the sector corresponding to salary.

HARD

11th Tamil Nadu Board

IMPORTANT

Statistics Standard 11>Chapter 4 - Diagrammatic and Graphical Representation of Data>EXERCISE>Q 41

The following table shows the details about the expenditures (in percentages) of Indian Hotel industries under various components.

Component of Expenditure	Percentage of expenditure
Administrative	$30$
Salary	$20$
Maintenance	$14$
Food and Beverages	$12$
Electricity	$16$
Savings	$8$

Draw pie diagram to represent the data. Also find the difference between the angles corresponding to Electricity and Maintenance.

HARD

11th Tamil Nadu Board

IMPORTANT

Statistics Standard 11>Chapter 4 - Diagrammatic and Graphical Representation of Data>EXERCISE>Q 47

Details about Stipend (in $₹$ ) given to the apprentices in an organization are given below. Draw less than Ogive to the data.

Stipend in $₹$	Number of apprentices
$2000 - 3000$	$4$
$3000 - 4000$	$6$
$4000 - 5000$	$13$
$5000 - 6000$	$25$
$6000 - 7000$	$32$
$7000 - 8000$	$19$
$8000 - 9000$	$8$
$9000 - 10000$	$3$

Estimate from the curve, the number of apprentices whose stipend is less than $₹ 5500$

HARD

11th Tamil Nadu Board

IMPORTANT

Statistics Standard 11>Chapter 4 - Diagrammatic and Graphical Representation of Data>EXERCISE>Q 47

Details about Stipend (in $₹$ ) given to the apprentices in an organization are given below. Draw less than Ogive to the data.

Stipend in $₹$	Number of apprentices
$2000 - 3000$	$4$
$3000 - 4000$	$6$
$4000 - 5000$	$13$
$5000 - 6000$	$25$
$6000 - 7000$	$32$
$7000 - 8000$	$19$
$8000 - 9000$	$8$
$9000 - 10000$	$3$

Find the median of the data

Write down the significance of diagrams and graphs.

Important Questions on Diagrammatic and Graphical Representation of Data

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