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Syllabus

i want a project on consumer awareness in statistics.

How many Public sector banks are in India? Name Please?

n a sample study. about the coffee habits in two towns, following information were received

Town A: males were 70%, total cofee drinkers were 40% and female non cofee drinkers wre 10%

Town B: female were 35%, male non coffee drinkers were 30% and female coffee drinkers were 20%.

out the above data in a tabular form.

i need to make a project on Changing prices of vegetables in the market for which i need to prepare a questionaire.

please suggest me some sample questions for the same

statistical methods are no substitute to common sense.Comment with example of your daily lifeDiscuss the different methods of classification of data.

What is ‘loss of information’ in classified data?

Present the following information in a suitable table:

In 2002 out of a total of 1750 workers of a factory, 1200 workers were members of a trade union. The number of women employed was 200, of which 175 did not belong to a trade union. In 2005, the number of union workers increased to 1580 of which 1290 were men. on the other hand, the number of non-union workers fell down to 208 of which 180 were men. In 2006, there were on the pay rolls of factory, 1850 workers of which 1800 belong to a trade union. Of all the employees in 2006, 300 were women of whom only 8 did not belong to a trade union.

distinguish b/w spatial and chronological classification.(3 marks)

Do you agree that classified data is better than raw data?

30 families in an area spend the following monthly expenditure on food:

115 159 196 205 212 223

256 271 310 219 335 169

184 234 245 241 265 298

144 135 172 173 229 20

238 278 243 20 238 238

[i] prepare a frequency distribution with exclusive method.

What is the difference between universe and sample?

Distinguish between census and sample surveys. list four important types of sampling methods. explain the reason for preparing sample surveys in the collection of statistics

Statistical calculations in classified data are based on

(a) the actual values of observations

(b) the upper class limits

(c) the lower class limits

(d) the class midpoints

1. Put the following data in the form of a frequency distribution with a difference of 10 (inclusive method);

33, 19, 10, 15, 16, 19, 21, 20, 17, 28, 27, 35, 37, 39, 39, 40, 41, 42, 29, 28, 29, 38, 41, 46, 45, 35, 37, 34, 35, 26, 37, 58, 43, 48, 45, 46, 49, 52, 54, 57.

2. Represent the following data by a multiple bar diagram.

Years. Income (in ‘000 Rs)

Firm A Firm B Firm C

2006 24 30 45

2007 20 45 30

2008 15 35 40

3. Construct a subdivided bar diagram to represent the following data:

Year Production (in million tons)

Rubber Coffee Pulses

1995 18 23 20

1996 15 10 17

1997 20 18 23

4. Represent the following data with the help of a pie diagram: 40 20 70 20

Items of Expenditure Amount spent in Rs

Food

Clothing

Fuel and Lighting 50

House Rent

Others

5. Represent the following data in a time series graph:

Years 2004 2005 2006 2007 2008 2009 2010

Firm A 2.4 2.9 5.1 4.3 2.7 5.8 4.1

Firm B 2.1 2.6 5.8 4.7 3.1 4.9 5.2

6. Construct a frequency polygon with the help of the following data:

Wages (in Rs): 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80

No. workers : 10 18 35 30 20 12 8 3

7. Calculate mean, median and mode from the following data:

Wages (in Rs): 80-90 70-80 60-70 50-60 40-50 30-40

No.workers : 7 9 10 15 5 4

In a trip organized by a college there were 100 people; the average cost works out to 1600 per head. There were 80 students each of whom had paid 1600. Members of the teaching staff were charged a higher rate. The number of support staff (all male) was 6 and they were not charged. The number of ladies was 20% of the total of which two were lady staff members.Distinguish between Univariate and Bivariate frequency distribution.

what is homogenius and heterogenious data

Explain the ‘exclusive’ and ‘inclusive’ methods used in classification of data.

Can there be any advantage in classifying things? Explain with an example from your daily life.

what is frequency array??

Prepare a frequency distribution by inclusive method taking class interval of 7 from the following data:

28

17

15

22

29

21

23

27

18

12

7

2

9

4

1

8

3

10

5

20

16

12

8

4

33

27

21

15

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

6

9

CLASS 11

What is the importance of statistics in modern economic set up? explain giving examples.

classify the following data by taking class intervals such that their mid-values are 17,22,27,32 and so on:

30, 30, 36, 33, 42, 27, 22, 41, 42, 30, 30, 21, 54, 36 ,31, 16, 40, 28, 19, 17, 48, 28,48, 36, 14, 37, 16, 37, 17, 54, 42, 41, 51, 44, 32, 46, 42, 31, 21, 47, 25, 36, 22, 52, 41, 40, 40, 53.

how will you choose the wants to be satisfied

It will help us to understand the main mathematical part of the chapter !

Students of class XI obtained following marks in economics.- 15, 15, 18, 16, 20, 21, 25, 25, 16, 18, 22, 24, 25, 20, 18, 22, 24, 24, 25, 23, 20, 15, 16, 17, 19, 18, 22, 22.

classify the data in the form of individual series, discrete series, continuious series and cumulative frequency series.

difference between discrete and

continuous variable

The frequency distribution of two variables is known as

(a) Univariate Distribution

(b) Bivariate Distribution

(c) Multivariate Distribution

(d) None of the above

in the following statement , take the no. of letters in a word as items and no. of times a word 9or same size) repeats itself as frequencies . prepare a discrete series.

"Success in the examination confers no absolute right to appointment unless government is satisfied after such an enquiry as may be considered necessary thet the candidate is suitable in all respects for appointment."

in examination 25 students secured marks

23 28 30 32 35 36 40 41 43 44 45 45 48

49 52 53 54 56 56 58 61 62 65 68 arrange these data in form of frequency distribution usingclass as intervals

20-29 30-39 40-49 50-59 60-69 aarange the data in cumulative frequency

Q.9. Draw histogram for the following data:

Q.10. Draw a multiple bar diagram for the following distribution of exports and imports (in rupees crores):

Q.11. Define scarcity definition of economics. Enumerate its criticism.

I have a doubt please answer the question

Mention two series from the point of view of their vonstruction. Give examples of each.

Thx

How many classes should we have? How does one decide about the size of class interval?

Convert the following data into less than and more than series X F 40-50 5 50-60 10 60-70 20 70-80 9 80-90 6

19,47,40,29,8,50,13,59,36,24

5 points

differentiate between primary and secondary data?

which method is more serious sampling error or nonsampling error and why ?

Under Exclusive method,

(a) the upper class limit of a class is excluded in the class interval

(b) the upper class limit of a class is included in the class interval

(c) the lower class limit of a class is excluded in the class interval

(d) the lower class limit of a class is included in the class interval

what is the importance of cumulative frequency distribution?

50,20,30,15,45,35,40,25,20,43

Define classification.

Give steps if construction Of continuous frequency distribution?

What is a variable? Distinguish between a discrete and a continuous variable.

a. an attribute

b. a discrete variable

c. a variable

d. a continuous variable

long answer

what was the basic problem that forced us to take U-turn in our polices in 1991?

Range is the

(a) difference between the largest and the smallest observations

(b) difference between the smallest and the largest observations

(c) average of the largest and the smallest observations

(d) ratio of the largest to the smallest observation

Prepare frequency distribution from the following weekly wages of 20 workers of a factory and also examine the error of grouping in each case.

200

215

207

211

210

228

245

221

250

238

229

231

230

248

250

241

235

250

233

230