Que. 1 : Q1) For practical and mathematical reasons, the number of independent variables included in a multiple regression model should be relatively small, preferably nor more than _______________.
1. a) Four to Five
2. b) Six to Seven
3. c) Seven to Eight
4. d) Eight to Nine
Que. 2 : Q2) What is defined as a collection of some but not all the elements of a population and a sample is a part or portion of the Population chosen for investigation?
1. a) Census
2. b) Sample
3. c) Population
4. d) Probability
Que. 3 : Q3) Which of the following are important Mathematical Properties of Variance?
1. a) For any Constant C, Variance of C = 0:σ^2(C) = 0.
2. b) For any random variable X, variance is non-negative:σ^2(X) ≥ 0
3. c) For any constant addition C, to any random variable X:σ^2(C+X) =σ^2(X)
4. d) All of the above
Que. 4 : Q4) The OC Curve is not probability density function. Say whether True or False.
1. a) True
2. b) False
3.
4.
Que. 5 : Q5) Which of the following are Non-probability sampling methods?
1. a) Convenience Sampling
2. b) Judgement Sampling
3. c) Quota Sampling
4. d) All of the above
