ECONOMICS

PREFACE

The home assignment , being given to the students , aims at strengthening the concepts of each student through reinforcement of topics covered in class lectures by practicing the questions given in the assignment. Some sample papers in each subject have been given. The maximum benefit can be gained only if the student goes through all the topics of fragment 1 thoroughly before attempting the sample paper. The assignment will not only act as a reinforcement tool but will also help the students acquire the tendency of solving the entire paper in one sitting, just like he/she sits in an examination for three hours. Hence, improving student’s time management skill in examination. This assignment will also fetch the student 5 marks in practical. The solutions of all the question papers given in the home assignment have to be written on separate A-4 sheets. For all the subjects , the assignments have to be submitted in different folders respectively. Last date to submit the assignment for each subject 5th July ’19. - PRINCIPAL

ASSIGNMENT 1 : 2019-2020

ECONOMICS : XI MARKS: 80

GENERAL INSTRUCTIONS i) Question no. 1 to 20 are very short type questions (MCQ’S) to be answered in one sentence or one word. ii)Question no. 21 to 24 are short answer type carrying 3 marks each. Answer to them should not exceed 60 words. iii) Question no. 25 -30 and are also short answer type carrying 4 marks each. Answers to them should not exceed 70 words. iv) Question no.31-34 are long answer type carrying 6 marks each. Answer to them should not exceed 100 words. v) Answers should be brief and to the point and the above word limits should beadhered to as for as possible.

ANSWER THE FOLLOWING QUESTIONS Q1. The term “Statistics was used first in (1x20=20) a)1749 b) 1851 c) 1849 d) 1790 Q2. State one limitation of statistics Q3. Write the name of statistical method which is less expensive and time saving. Q4. Which of the following is an economic activity? a)Production b) Consumption c) Distribution d) All of these Q5. Distinguish between quantitative and qualitative data Q6. Which data is collected by investigator himself. Q7. Data collected for the first time from the source of origin is called

a) Primary data b) Secondary data c) Internal data d) None of these

Q8. Which of the following is a source of secondary data? a)Government publication b) Private publication c) Report published by the State Bank of India d) All of these Q9. Name an important government agency which collects ,process and tabulate data at national level. Q10. Exit poll that shows the chances of winning the number of seats by different parties in 2019 Loksabha election shown on T.V by some channels, for the viewer is

a)Primary data b)Secondary data

c) Continous data d) Discrete data

Q11. To conduct survey of illiterate respondent, the best method for collection of data will be a)Questionnaire method b) Indirect interviews

c) Personal interviews d) Observation method

Q12.Census of India depicting growth rate of population is an example of a) Quantitative classification b) Qualitative classification c)Chronological classification d) Spatial classification

Q13. When data of two variables are presented in frequency distribution is called a)Univariate population b) Bivariate population

c) multivariate –population d) None of the above

Q14. The number of observations in a classes is called a)Density b) Frequency c) Both (a) and (b) d) none of the above.

Q15. Range is the

a) Difference between largest and smallest observation

b) Difference between smallest and largest observation

c) Average of the largest and the smallest observations

d) Ratio of the largest to smallest observations

Q16. Intelligence of a student is a) a variable b)an attribute c) a discrete variable d) none of the above

Q17. The main object of tabulation is a) To make the data complex

b) To simplify complex data

c) Both

d) None

Q18. The most appropriate and attractive diagram to represent the data relating to the monthly expenditure on different items by a family is

a) Broken bar diagram b) Pie diagram c) Simple bar diagram d) None of the above

Q19 Time series graphs are also known as a) Line graphs b) arithmetic line graphs c) both (a) and (b) d) none

Q20. A curve obtained by joining midpoints of adjacent rectangles of the histogram by straight lines is called

a) Frequency curve b) Frequency polygon c) Ogive d) None

Q21.How is statistics important for studing economics? (3)

Q22. Differentiate between census and sample method of statistical enquiry on the basis of cost and accuracy (3) Q23.Distinguish between tabulation and classification of data (3) Q24. The following set of numbers represent monthly income (in RS 000) of selected 40 families:

10 17 15 22 11 16 19 24 29 18 25 26 32 14 17 20 23

27 30 12 15 18 24 36 18 15 21 28 33 38 34 13 10 16

20 22 29 29 23 31

Arrange the income into a frequency distribution having a suitable number of classes (3)

OR

The Following data shows the number computer by a company during a six week period

22 65 65 67 55 50 65 77 73 30 62 64 48 65

79 60 63 45 51 68 79 83 33 41 49 28 55 61

65 75 55 75 55 87 45 6/ 6 65 59 25 35 53

Group the data into a frequency distribution inclusive method. (3) Q25. ‘Statistics affects everybody and touches life at many points.” Explain (4) Q26.What do you mean by a questionnaire ?Discuss the principles which should be followed while drafting a good questionnaire? (4) Q27.Do samples provide better results than surveys? Give reasons for your answer. (4) Q28.convert the following Cumulative frequency distribution into a simple frequency distribution:

(4)

Q29. Tabulated data brings out concealed facts from classified facts.” Illustrate main objectives of tabulation with respect to given statement. (4) Q30.Construct a histogram from the following distribution of total marks obtained by 65 students of a school in a Board Examination. (4)

Marks (midpoints)

150 160 170 180 190 200

No.of students

8 10 25 12 10 3

OR Prepare a suitable graph to represent the following data of imports and exports from 2010 to 2015 (4)

Years 2010 2011 2012 2013 2014 2015

Imports (cr) 4 10 8 16 18 20

Exports (cr)

6 14 12 20 22 25

Q31. Write a short notes on (6) (i) Census of India

MARKS NUMBER OF STUDENTS

More than 0 55

More than 5 51

More than10 43

More than15 28

More than 20 16

More than 25 6

More than 30 0

(ii) Statistical regularity

Q32. Prepare a frequency distribution by inclusive method taking class interval of 7 from the following data (6)

28 17 15 22 29 21 23 27 18 12 7 2

9 4 6 1 8 3 10 5 20 16 12 8

4 33 27 21 15 9 3 36 27 18 9 2

4 6 32 31 29 18 14 13 15 11 9 7

1 5 37 32 28 26 24 20 19 25 19 20

Q33. Distinguish between sampling and no sampling error..Which error is more serious and why? (6)

Or Explain the method of collecting data through mailed questionnaire , state its merits and demerits. Q34.Draw a pie diagram to represent the following information of expenditure by a family: (6)

Items of expenditure

Food Education Housing Clothing

Misc.

% of total expenditure

60 15 10 10 5

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ASSIGNMENT 2 : 2019-2020 ECONOMICS : XI MARKS: 80

General Instructions: 1. All questions are compulsory.

2. Marks for questions are indicated against each.

3. Question no. 1 to 20 carrying 1 mark each.

4. Question no. 21 to 24 carrying 3 marks each.

5. Question no. 25 to 30 carrying 4 marks each.

6. Question no. 31 to 34 carrying 6 marks each.

1. According to ___________,”economics is the science of wealth.’ (1)

(a) Adam smith (b) Alfred Marshall (c) prof. Samuelson (d) Lionel Robbins

2. Class interval is a group made by ________ limits (1)

a) 4 (b) 3 (c) 2 (d)5

3. Which economic activity deals with the use of goods and services for the satisfaction of

human wants? (1)

(a) consumption (b) exchange (c) production (d) distribution

4. The word statistics was used first in… (1)

(a) 1851 (b)1749 (c) 1849 (d) 1790

5. The term statistics was first used by (1)

(a) Gottfried Achenwall (b) Paul A. Samuelson

(c) Lord Robbines (d) J.B. Say

6. Data collected from census report of India is- (1)

(a) primary data (b) secondary data (c) sample data (d) none of these

7. It is best to use a census while conducting a survey if: (1)

(a) the population is large (b) the population is small

(c) time is limited to conduct the survey (d) cheaper method is needed

8. Which data is collected by the investigator himself.. (1)

(a) primary (b) secondary (c) both a & b (d) neither of the above

9. After every ten years, information regarding population of India is collected through. (1)

(a) census (b) sample (c) both a &b (d) neither of the above

10. Indirect oral investigation method suffers from (1)

(a) biasness (b) doubtful conclusion (c) inaccuracy (d) all the above

11. In random sampling (1)

(a) each element has equal chance of being selected (b) sample is always full of bias

(c) cost involved is very less (d) cost involved is high

12. Cumulative frequency series are of (1)

(a) 4 (b) 3 (c) 2 (d) 6

13. Nationality of a student is: (1)

(a) An attribute (b) A discrete variable

(c) A continuous variable (d) Either a or c

14. Frequency of a variable is always (1)

a) A fraction (b) in percentage (c) on integer (d) none of these

15. Caption is the title given to: (1)

a) Column (b) rows (c) headnote (d) stubs

16. The heading of therows given in the first column of a table are called (1)

a) Stubs (b) title (c) reference notes (d) captions

17. The most accurate mode of data presentation is (1) (a) Diagrammatic method (b) tabulation (c) textual presentation (d) none of these

18. In tabulation, source of the data is shown in the: (1)

(a) Source note (b) body (c) stub (d) caption

19. Tabulation is arranging data in: (1)

(a) Rows & graphs (b) rows & columns (c) rows & diagrams (d) diagrams & graphs

20. Details are shown by (1)

(a) Charts (b) tabular presentation (c) both a & b (d) none of these

21. Discuss the essential of a good table. (3)

22. State any three factors affecting size of sample. (3)

23. Convert the following cumulative series into exclusive series. (3)

24. You have unlimited wants & limited resources to satisfy them. Explain by giving one

example. (3)

Wages Number of workers

More than 0 80

More than 1000 60

More than 2000 40

More than 3000 20

More than 4000 10

25. In XIth class, there are 120 students, out of which 70 are boys. Out of total 70 boys, 30 boys

belongs to science stream and 25 are of art stream. There are 10 girls in science stream

and 35 in commerce stream. Present these facts in the table. (4)

26. Construct histogram for the following (4)

Wages 5 15 25 35

No. of Workers 10 20 40 30

27. What is meant by statistical errors? What are the sources of statistical error? (4)

28. Explain ant four objectives of tabulation. (4)

29. Distinguish between census and sampling method of data collection. (4)

30. Discuss the different method of classification. (4)

31. Distinguish between exclusive and inclusive series with the help of numerical example. (6)

32. Statistic is full of advantages and does not suffer from a single limitation. Do you agree? (6)

33. Distinguish between primary data and secondary data. Which data is more reliable and

why? (6)

34. What do you mean by a questionnaire? Discuss the principles which should be followed

while drafting a good questionnaire? (6)

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ASSIGNMENT 3 : 2019-2020 ECONOMICS : XI MARKS: 80

General Instructions :

• All questions are compulsory

• Marks for question are indicated against each question .

• Question No . 1-20 are multiple choice question carrying 1 marks each .

• Question No. 21-24 are short answer questions carrying 3 marks each. answer to them

should not normally exceed 60 words each.

• Question No : 25-30 are also short answer question carrying 4 marks each . answer to

them should not normally exceed 70 words each.

• Question No : 31-34 are long answer question carrying 6 marks each . answer to them

should not normally exceed 100 words each .

• answer should be brief and to the point and the above word limit should be adhered to

as for as possible.

1. In singular sense statistics means .

A. Statistical Science B. Statistical Law

C. Both (A)& (B) D. None Of These

2. A histogram is a graphical presentation of a frequency distribution of a :

A. Individual Series B. Discrete Series

C. Continuous Series D. Noneof These 3. The process of presenting data in the form of a table is called .

A. Organisation B. Classification

C.Presentation D. Tabulation 4. Schedules arefilled by the .

A.Investigator B. Enumerator C. Informant D. None of these

(OR)

Which of the following is a source of secondary data :

A. Government Publication B. Private Publication C. Report Published by The State Bank Of India D. All Of These

5. Which of the following is the objective of classification : A. Simplification B. Briefness C. Comparability D. All of These 6.Whichof the following are titles of the rows of a table : A.Title B. Stub C. Caption D. None Of These

7.Whatis the shape of less than ogive: A.Rising Upward B. Falling Downward C.Parallel to X-Axis D. Parallel to Y-Axis 8. Data collected for the first time form the source of again is called: A.Primarydata B. Secondary data C. internal data D. None ofthese 9. The aggregate of data is called : A. Statistics B. editing of data C. analysis of data D. collection of data 10. In a series the number of times an item occurs is known as: A. Number B. Class frequency C. Frequency D. Cumulative frequency 11. In temporal classification data are classified on the basis of : A. Location B. Time C. Originality D. Purpose 12. Which of the following diagrams is drawn by points of joining midpoints of the tops of all rectangles in a histogram : A. frequency distribution B. frequency Polygon C. frequency Curve D. NoneOf These 13.Arithmetic Line - Graphsare also Known as: A. Lineargraphs B. Non- Lineargraphs C. Time –Seriesgraphs D. Noneofthese

OR Graphs are always drawn with reference to : A. Scale B. Origin C. both (A)&(B) D. None of these

14. The Process Ofconverting raw -material into goods is called : A.Production B. Saving

C. Investment D. Exchange 15. Which of the following is a merit of a good questionnaire: A. Difficulty B. Less Number Of Questions C. Not in proper order D. Invalid question 16.The Characteristicof a fact that can be measured in the form of numbers is called : A. frequency B. Variable C. Attribute D. Noneof these 17. Table is the consequence of: A. Classification B. Organisation C. Presentation D.Tabulation 18. Normal curves are also knon as : A. J-Shaped Curves B. L-Shaped Curves C.U-ShapedCurves D. Bell-ShapedCurves 19.Whichof the following is a method of secondary data collection : A. Direct Personal Investigation B. Indirect Oral Investigation C. Collection Of Information Through Questionnaire D. NoneOf These 20. Classification of data on the basic of time period is called : A. Geographical Classification B. Chronological Classification C. Qualitative Classification D. Quantitative Classification

OR The difference between upper limit and lower limit of a class is known as: A. Range B. Magnitude of a class Interval C. Frequency D. Class Limits

21. State the main limitations of statistics 22. Distinguish between primary and secondary data .

(OR) What are the qualities of a good questionnaire : 23. What is meant by inclusive series ? give one example .

24. What is the difference between histogram and frequency polygon. 25. Describe the advantages of graphic presentation . 26. Define statistics what are its basic characteristics. 27. Distinguish between census method and sampling method.

OR What is meant by direct personal investigation ? give its merits and demerits ( (only two) 28. Draw a pie diagram to represent the following data .

Type of food North India South Indian Chinese Italian Mexican

Number of people : 150 100 125 75 50

29. What is meant by tabulation ? What are the main objectives of tabulation . 30. What are the main sources of secondary data .

OR What is meant by indirect oral investigation ?Give its merits and demerits (Any Two). 31. Discuss the scope of statistics : 32. Construct a histogram and frequency polygon of the following distribution .

Morks :0-10 10-20 20-30 30-40 40-50

Number Of Students : 8 18 35 25 14

OR

Draw less then and more than a ogive curves form the following data .

Class Interval : 0-5 5-10 10-15 15-20 20-25 25-30 30-35 35-40

Frequency : 7 10 20 13 12 19 14 9

33. Discuss the different methods of classification of data :

OR Explain the main parts of table 34. What Are The Advantages And Disadvantages Of Collecting Primary Data By No.1 : Information Form Local Sources . No.2 : Mailing questionnaires to respondents .

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