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

• Tuesday, June 28, 2016

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

B.Com.  (Sem.–2nd)
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
Q.I.
(a) What is the definition of statistics?
(b) What are the main limitations of statistics?
(c) What is direct personal investigation method of collection of data?
(d) What precautions should be taken in classification of data?
(e) What are the advantages of diagrammatic presentation of data?
(f) Define mode.
(g) What is negative correlation?
(h) Define regression.
(i) What is the meaning of time series?
(j) What is Lorenz curve?

SECTION – B

Note: Attempt any four questions from section B, each question carries

Q.II    What is secondary data? What are the main sources of secondary data?

Q.III   Find out arithmetic mean from the following data:

 X 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 90-100 F 20 10 5 15 2 18 15 5 10

Q.IV Calculate standard deviation from the following distribution:

 Age 20-25 25-30 30-35 35-40 40-45 45-50 No .of persons 170 110 80 45 40 35

Q.V Calculate Karl Pearson’s coefficient of correlation between the age of husband and age of wife from the following:

 Age of husband 39 65 62 90 82 75 25 98 36 78 Age of wife 47 53 58 86 62 68 60 91 51 84

Q.VI From the following data obtain regression equations of x on y:

 X 6 2 10 4 8 y 9 11 5 8 7

Q.VII Year wise distribution of population in a village is given. Calculate 3 yearly moving average of population.

 Year 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 population 2013 2691 2932 2937 4921 2275 2234 2606 2315 2019 3389