The coefficient of ‘b2’ in (3a + b)3 is
= (3a + b)3 = (3a)3 + b3 + 3 × (3a)2 × b + 3 × 3a × b2 = 27a3 + b3 + 27ba2 + 9ab2 So, coefficient of ‘b2’ = 9a
The two regression lines are 12X+8Y=104 and 24X+12Y=124. Find the correlation coefficient.
Consider two independent random variables: X~N(5, 4) and Y~N(3, 2). If  (2X + 3Y)~N(μ, σ2), then the values of mean (μ) and variance (Ï...
With reference to the governance of public sector banking in India, consider the following statements:
For which of the following consumption functions, the value of income multiplier, k=4?
An economist calculated the cross-price elasticity of demand for nicknacks and gizmos and got -0.5. What can she conclude about the relationsh...
If it rains a dealer in raincoats can earn Rs. 400 per day. If it is a fair day he loses Rs. 80 per day. What is his expectation if the probab...
For Cobb-Douglas production function the elasticity of substitution is
In the Classical model, what is the shape of the Aggregate Supply (AS) curve in the long run, and why?
Which of the following statement is correct?
1. If autoregressive parameter (p) in an ARIMA model is 1, it means that there ...
The theory of interest rate parity means that the__________.
