Punjab University B. Com Part 1 Past PapersBusiness Statistics & Mathematics 2008 Time : 3 Hours Marks: 100 Note: Attempt any five questions. All questions carry equal marks. Attempt at least two Questions from each section. Q.1. Give short answers of the following. Unnecessary details will be penalized. (20) (i) What is the difference between Primary & secondary data? (ii) Define the term skewness. (iii) What is meant by Mode (iv) Define correlation, (v) What is meant by continuous variable? (vi) What is Meant by Population? (vii) Under what conditions, we cannot find Harmonic Mean? (viii) What is meant by Quadratic equation? (ix) Define Symmetric Matrix. (x) Define the teen Annuity. SECTION-1 Q.2. DOWNLOAD FILE TO View this Question Q.3.(a) DOWNLOAD FILE TO View this Question(b) Two cards are drawn at random from a pack of 52 cards what is the probability that: (i) Both are of same colour. (ii) Both are of different colour. Q.4. DOWNLOAD FILE TO View this QuestionQ.5) Given that a population consists of six values 1, 5, 7, I I, 15, 17. How many samples of size n = 2 can be drawn with out replacement from this population? By forming a sampling .distribution of the sample means, state and verify the relation between: (ii) Variance of the sampling distribution of the means & the population variance. Section-II Q. 6.(a) Solve the equation for 'x'. (2x-10/x+4 )+ 3 = (x-2/x-3) + 4 (b) Solve for 'y': (y - 3) (y + 2) = - 4 Q.7. DOWNLOAD FILE TO View this QuestionQ.8.(a) Find the sum of all the odd integers from 7 to 7291 inclusive? (b) A house worth Rs. 1,60,000 twenty years ago has increased in value by 10% each year because of inflation. What is its worth today? Q.9.(a) A machine in shoes factory, purchased for Rs. 8500. After 8 years useful life its scrap will be, Rs. 3000. Find the depreciation rate. (b) A house is rented for Rs. 9000 per month, with each month's rent payable in advance. If the interest rate is 12% compounded monthly and the rent is deposited in an account. What will be the amount of rent for two years? |
2008 Paper AnalysisQuestion No.1 : Short Questions Question No.2 : Measures of Central Values Question No.3 : Index Number Question No. 3 (b) : Probablity Question No.4 : Co relation and Regression Co efficients Question No.5 : Sampling Distribution Question No.6 : Simultaneous Equations Question No.7 : Matrices Question No.8 : Sequence and Series Question No.9 : Depreciation , Present Future Values |

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