Calicut University 2006 M.Com Commerce QUANTITATIVE TECHNIQUES - exam paper
D27047
D 27047 (Pages : 2) Name..U,!.Sr(W...../!lf.?.QO
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FIRST SEMESTER M.Com. DEGREE EXAMINATION, NOVEMBER 2006
Paper 1-2QUANTITATIVE TECHNIQUES (2004 admissions)
Time : Three Hours Maximum : 80 Marks
Part A
Answer all questions.
Each question carries 2 marks.
i. What is meant by discrete random variable ?
'ly What is a probability distribution ?
3. Slate law of largo numbers.
4. Define expectation of.r.
5. What is /-static ?
(5 x 2 = 10 marks)
Part Q
Answer any four questions.
Each question carries 10 marks.
(a) State addition theorem of probability.
i h i 20 per rent of the holts produced in a given machine is on t.he average found defective. If )0 hi M - an- selected it random from one days production, find the probability i;hat 3 of them wil! !:< defective.
7. (a) A binomial distribution has n - 20, p = 0-4. Calculate the mean and variance of the distribution, ibj Distinguish between One-tail and Two-tail tests,
8. To ascertain whether the high income families'have a tendency to send their children to private schools, a survey was conducted among 2,000 families and the following results were obtained :
No. of children in
* - - A i
Private. School Government School
Low income families ... 400 450
High income families ... 600 550
How do you tr.st these results ?
9. Bring out the relative merits and demerits of stratified random sampling and cluster sampling methods
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| Earning: Approval pending. |
