S.No.: /03 Reg.No.:

END OF SEMESTER ~INATIONS, NOVEMBER - 2018STATISTICAL METHODS

SUBJECT CODE: 1&UAEC08/ J 2..uJ9 E COg-

MAJOR: B.A (Economics)TIME : 3 HOURS

SEMESTER .vMAX.MARKS: 75

SECTION - A (10 X 1 = 10)

Answer ALL Questions:

1. Define Statistics.2. What is Median?3. Define Range.4. Define Kurtosis.5. What is Correlation?6. Write down the formula for rank correlation.7. What is Index Number?8. Define Chain Index Number.9. What is time series?10.What is seasonal variation?

SECTION - B ( 5 X 4 = 20 ) .

Answer any FIVE Questions:

11.Diffrentiate primary and secondary data.12.Explain the merits and demerits of Tabulation.13.Discuss Lorenz Curve.14.Analyse the problems of construction of Index Number.15.Calculate the arithmetic mean from the following data.

I Marks I 20 I 30 I 40 I 50 I 60 j 70 iI No.of Students I 8 i 12 I 20 I 10 ! 6 !~

16.Calculate rank correlation coefficient.I A ! 6 I 5 ! 3 i 10 I 2 I 4 I 9 I 7 8 1i B I 3 i 8 ! 4 i 9 ! 1 i 6 ! 10 I 7 5 2

17.Given the data construct the index number.Commodity! Price in 2016 Price in 2017

A 90 95B 40 60C 90 110D 30 35

18.Calculate three yearly moving average of the following data.I Year I 1981 i 1982 ! 1983 ! 1984 i 1985 ! 1986 I 1987 i 1988 !1 No.of Students 15! 18 17 20 23 25 29 33

..2.,

121SECTION - C ( 3 X 15 = 45 )

Answer any THREE Questions:

19.Calculate median and mode of the data given below using then find arithmeticmean.

No.of Students 15Marks 10-20

21. Calculate coefficient of correlation from the following data.m 100 i 200 I 300 ~ 500 ~ 700 iI Y I 30 I 50 ! 60 i 80 1 100 ! 110 i 130 .

22. Calculate Fisher's Ideal Index from the data. Does it satisfy the time reversaland factor reversal tests.

~Commodity I Price I Quality ! Price Quality! A : 6 I 50 1 10 I 56I B i 2 i 100 I 2 120I

,C : 4 I 60 I 6 60 I

I

D i 10 1 30 I 12 I 24I

E I 8 i 40 I 12 36I I I

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