If X and Y are independent random variables and Var(X)=Var(Y)=4, then find Var(2X-3Y+1)?
Var(2X-3Y+1) = (2)^2*VarX + (3)^2*Var(Y) + Var(1) = 4*4+ 9*4 = 16+36 = 52 Since, variance of constant is 0, so Var (1) is 0.
A distribution of 6 scores has a median of 21. If the highest score increases 3 points, the median will become
Mean and Standard deviation of 100 observation is 50 and 10 respectively. What will be the new mean and Standard deviation if each observation is multip...
Let the utility function of a consumer be given by U(x,y) = min {y+2x, x+2y}. Prices are given by Px=1, Py=3, while the consumer’s income is...
According to the Taylor principle, for inflation to be stable, the central bank must respond to an
increase in inflation wit...
If a tax on a good is doubled, the deadweight loss from the tax
Demand function for two commodities was given as below. Which of the following options are correct? Q1= A1(Px1)-0.5 (Px2)0.2 Q2 = ...
Which of the following statements is NOT CORRECT in the context of an Open Economy IS-LM Model under Floating Exchange Rate (with fixed price) and Perfe...
Which of the following statements is NOT correct in the context of quantity theory of money?
If factor cost is greater than Market price, then it means that:
Offer curve introduced by Alfred Marshall deals with :
