Register Number :

Name of the Candidate :

1 1 5 6

B.Com. DEGREE EXAMINATION, 2009

( SECOND YEAR )

( PART - IV )

( PAPER - I )

231 / 620 / 630. BUSINESS STATISTICS

( Including Lateral Entry and Double Degree )

[ ( Common with B.Com., (I.B.) andB.Com. (Accounting & Finance ) ]

May ] [ Time : 3 Hours

Maximum : 100 Marks

Answer any FIVE questions.All questions carry equal marks.

(5 20 = 100)

1. (a) Explain any one method of collectingprimary data.

(b) Mention the advantages and disadvantagesof secondary data.

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7 . V>VklK^ V

zk>uzB >D x

sk.

8 . VB, V \uD, [ s

zX| |, V

]A V>B VD.

9 . [kD sz B A s>D

\uD, W|]B A s>D

gBku | :

10. _lK^ \Vk[ J \uD,

VV>V Wl k>uz

sV B_ >BVD.

1995 2000 1995 2000A 80 105 4 6B 15 30 2 3C 8 14 3 4D 35 80 1 2E 160 210 5 5

V^s

8

kBm

(k]_) \^ >VA

5 - z 15,000 3605 - zD 30 - zD l_ 20,000 40030 - z \_ 10,000 280

2. (a) Draw Ogive curves for the following dataand find out median :

(b) Discuss the quantitative classification ofdata.

3. (a) Mention the properties of a good average.

(c) Compute arithmetic mean, median andmode for the following frequencydistribution :

2

Class Frequency 0 - 5 6

5 - 10 10

10 - 15 4

15 - 20 12

20 - 25 8

25 - 30 2

X F10 - 14 1515 - 19 1820 - 24 2825 - 29 3030 - 34 1535 - 39 1040 - 44 5

4 . () Vs s|k>uV

kk x kB.

(g) kD kKz V_BM[

Vs | :

5. \VBBV[ |s

kB Fm, s [kD

sz D.

6 . V[B[ xl B[|] 35

kB]uz zukV[ >T>>

| :

|gzukV^

>T>D

25 - z 1530 - z 2440 - z 3850 - z 51

7

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X : 45 81 103 125 160 205 210 245Y : 150 165 184 205 210 225 240 264

q f 5 - 15 1015 - 25 2025 - 35 3035 - 45 4045 - 55 5055 - 65 6065 - 75 7075 - 85 80

2 . () [kD sz { k

km, WB | :

(g) A^sV V>

kX sz.

3 . () _ Vl[ A

z|.

(g) [kD k kKz

|V, W \uD, x|

gBku | :

0 - 5 6

5 - 10 10

10 - 15 4

15 - 20 12

20 - 25 8

25 - 30 2

X F10 - 14 1515 - 19 1820 - 24 2825 - 29 3030 - 34 1535 - 39 1040 - 44 5

6 3

4. (a) Define different methods of measuringco-efficient of skewness.

(b) Compute Karl Pearsons co-efficient ofskewness for the following distribution :

5. Define correlation between two variables andcompute the co-efficient of correlation for thedata given below :

Class f 5 - 15 10

15 - 25 20

25 - 35 30

35 - 45 40

45 - 55 50

55 - 65 60

65 - 75 70

75 - 85 80

X : 45 81 103 125 160 205 210 245

Y : 150 165 184 205 210 225 240 264

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9. Compute crude death rate and standardiseddeath rate for the following information :

10. Prepare a questionnaire to collect informationfrom the students of a college about theirsocial and economic status.

>twVD>twVD>twVD>twVD>twVD

kBD nmnmnmnmnm sVz sB.

m m m m m sVzD \ \ \ \ \ \]^.

(5 20 = 100)

1 . () x>_W A^s

>uV >D xB

sk.

(g) VDW A^sV

[\ y\ z|.

Age group(in years) Population

No. ofdeaths

Below 5 15,000 360

Between 5 and 30 20,000 400Above 30 10,000 280

5

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6. Determine the percentage of criminals under35 years of age using Lagranges method :

7. Explain any two methods of eliminating trendin a time series.

8. Compute Laspeyres, Paasches and Fishersprice index numbers and check if they satisfythe factor reversal test :

Age % Criminals

Under 25 yrs. 15

Under 30 yrs. 24

Under 40 yrs. 38

Under 50 yrs. 51

1995 2000 1995 2000

A 80 105 4 6

B 15 30 2 3

C 8 14 3 4

D 35 80 1 2

E 160 210 5 5

CommodityPrice Quantitiy

4