Tamil Nadu Open University (TNOU) 2009-1st Year B.B.A .>>Computer Applications BUSINESS MATHEMATICS AND STATISTICS>>E .>> - Question Paper

B.B.A. DEGREE exam –
JUNE 2009.
First Year
Computer Applications
BUSINESS MATHEMATICS AND STATISTICS
Time : three hours Maximum marks : 75

PART A — (3 ´ five = 15 marks)
ans any 3 ques..
All ques. carry equal marks.
1. describe Statistics. elaborate the limitations of Statistics?
2. A sum of rupees 10,000 is invested at 8% per year, being compounded yearly. It yields Rs. 13,604.90. Determine the number of years for which it is invested.
3. Write short notes on Venn diagrams and Sub–set.
4. calculate the geometric mean of the subsequent series :
Marks : 0 – 10 10 – 20 20 – 30 30 – 40 40 – 50
No. of Students : five seven 15 25 8
5. State any 2 differences ranging from Correlation and
regression.

PART B — (4 ´ 15 = 60 marks)
ans any 4 ques..
All ques. carry equal marks.
6. discuss Dispersion. elaborate the different measures in dispersion?
7. A random sample of five College learner is opted and their marks in Accountancy and Statistics are obtained to be :
S. No : one two three four 5
Accountancy : 85 60 73 40 90
Statistics : 93 75 65 50 80
compute Spearman’s Rank Correlation Coefficient.
8. From the subsequent data obtain out Arithmetic Mean
and Median.
Height (cms) : 120 122 124 126 128 130
No. ofStudents :5 seven nine six four 10
9. Fit a straight line pattern to the subsequent data :
Year : 2000 2001 2002 2003
Exports :
(Rs. in Crs.)
121 134 151 127
Year : 2004 2005 2006 2007
Exports : 172 167 191 212
(Rs. in Crs.)
10. find the lines of regression from the subsequent
data :
X : six two 10 four 8
Y : nine 11 five eight 7
11. obtain the maximum and the minimum values of the subsequent :
2x3-15x2+36x+12
12. elaborate the different methods for collecting primary data?

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Earning:   Approval pending.