Calculate the standard error of the estimate of Y on X regression equation for the following data- N =50 , ∑y² = 300 , ∑xy = 30, ∑x

Sonia has decided to always spend one-tenth of her income on shoes. Her income and price elasticities of demand for shoes are

The marginal cost of production is MC=0.3x+4, determine the cost involved to increase production from 70 to 100 units.

Based on the sticky-price model, the short-run aggregate supply curve will be steeper, the greater

the_____

Objective function was given as Z= 4X+5Y. Four extreme points were given as (0,4), (5,0), (3,3), (3,4). Find at which point function is maximized.

If rxy = 0.4, then r(2x, 2y) is equal to:

An event in the probability that will never be happened is called as -

If the two regression line are: 4x-5y+30 =0 and 20x – 9y = 107, Which of these is the line of regression of x on y and y on x.