List of practice Questions

In correlation analysis, the two variables
What is the geometric mean of 2, 4, and 8?
Suppose that the random variable \( X \) takes on the values: -1, 0, and 2 with probabilities \( \frac{1}{8} \), \( \frac{1}{2} \), and \( \frac{3}{8} \) respectively. Find the expected value of \( X \).
If we twice flip a balanced coin, what is the probability of getting at least one head?
In Solow's growth model, the output per capita is a function of:
Which of the following is not correct about the steady state equilibrium for the economy according to neoclassical growth theory?
Which of the following is not correct about the effectiveness of monetary and fiscal policies under perfect capital mobility?
Commercial banks in India are subject to a statutory liquidity requirement (SLR). Which of the following is not part of the SLR?
The following are the reasons for firms to hold stock of inventories except:
Which of the following is not correct about residential investment?
Which of the following is not correct about the effect of taxes on income and output?
Which of the following does not constitute liabilities of commercial banks in India?
In the case of classical economics, an increase in the nominal money stock causes:
Which of the following is not considered in the calculation of GDP?
Which of the following is excluded from headline inflation to arrive at core inflation?

If the marginal cost of a firm is given as the function of output, \( C'(Q) = 2e^{0.2Q} \), and if the fixed cost is 75, find the total cost function.

Which of the following is incorrect about the problem of externalities?
Assuming that the production function is homogeneous of degree one and Euler's equation holds, if \( MP_L \) (marginal product of labour) is greater than \( AP_L \) (average product of labour), then:
Which of the following statements is not correct?
The exports of goods of a country, \( G = G(t) \), has a growth rate of \( a/t \), and its exports of services, \( S = S(t) \), has a growth rate of \( b/t \). What is the growth rate of its total exports \( X \)?
The Pareto optimality criterion implies fulfillment of all the following conditions except:
If the demand function is given as \( P = 110 - Q^2 \) and market equilibrium is attained at \( P_0 = 29 \) and \( Q_0 = 9 \), calculate the consumer surplus.
The molecular density of a gas is n and diameter of its molecule is d. The mean free path of molecule is:

Match List-I with List-II for the index of refraction for yellow light of sodium (589 nm)

LIST-I (Materials)LIST-II (Refractive Indices)
A.IceI.1.309
B.Rock salt (NaCl)II.1.460
C.CCl₄III.1.544
D.DiamondIV.2.417


Choose the correct answer from the options given below:

The gas constant is: