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## Download Question Paper of "Business Statistics 2 B.Com" , Question Paper of B.Com 2nd Semester, Subject Code : BCOP-204, Paper ID B1120, Paper 1

• Tuesday, June 28, 2016

Roll  No.......................
Total  No.  of  Questions  :  07

B.Com.  (Sem.–2nd)
BUSINESS   STATISTICS
Subject  Code  :  BCOP-204
Paper  ID  :  [B1120]
Time  :  3  Hrs.
INSTRUCTION  TO  CANDIDATES  :
1.     Section A is compulsory . Attempt all questions ( short answer) form
2.     Section A , each question carries 2 marks.

SECTION – A
1.     Write briefly
a.     What is the empirical relation in Mean ,Median and mode?
b.     What is the significance of measures of dispersion?
c.      Discuss the properties of correlation.
d.     Name various components of time Series.
e.      What is Lorenz Curve?
f.       What is Harmonic Mean ? what are its features?
g.     Distinguish between Skegness and kurtosis.
h.     Distinguish between Correlation and Regression.
i.       Distinguish between Primary Data and Secondary data.
j.       Discuss the moving average method of time series.

Section –B

2.     What are the various methods of collecting Primary data? Which of these is most reliable and why?

3.     The frequency distribution of weight in grams of mangoes of a given variety is given below . calculate Arithmetic mean and median

 Weight in grams 410-419 420-429 430-429 440-449 450-459 460-469 470-479 Number of mangoes 14 20 42 54 45 18 7

4.
a.     What do you mean by statistics? Discuss is Scope.

b.     Calculate the mean and standard deviation for the following data:

 Value 90-99 80-89 70-79 60-69 50-59 40-49 30-39 frequency 2 12 22 20 14 4 1

5.
a.     What is tabulation? Explain the purpose of tabulation. What precautions would you take in tabulating statistical data?

b.     What do you mean by Regression? Discuss the various properties of Regression.

6.     Following table gives the index number of security prices of joint stock company pertaining to shares and debentures:

 Share price index 73.2 85.8 78.9 75.8 77.2 81.2 93.8 Debenture price index 97.8 99.2 98.8 98.3 98.3 96.7 97.1

7.     Fit a straight line trend and estimate the trend value for the output of sugar, Also estimate the sugar output for 2009.

 Year 2002 203 2004 2005 2006 2007 2008 Output 90 100 104 88 98 106 110

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