If the regression coefficients are both 0 then r is 0. The reasoning for either one of them being 0 holds true mathematically but in the econometrics sense, rxy = 0, means that there is no linear relationship between x and y as covariance is 0; so one of the regression coefficient being non-zero would indicate existence of a relationship between the two variables. Hence, option c is the most appropriate one.
By selling a bike for Rs. 45000, Abhishek incurs a loss of Rs. 5000. Find the loss %.
Suppose Ranjan purchases a bike for Rs. 6,50,000 and sells it for Rs. 8,00,000, calculate the profit % in this transaction.
Find the profit percentage earned on a school bag if it was sold at Rs.1472 after offering a discount of 20% and the marked price of a school bag is Rs...
Cost price of an article is X. The article is marked up by Y% and sold while offering a discount of 25%. The profit earned is (Y + 20). When the same ar...
A boutique owner marked a dress 100% above the cost price and sold it after two consecutive discounts of 15% and 10%. If she had marked it 80% above the...
An item is sold for Rs. 135 more when its profit margin is 20% compared to when it incurs a 40% loss. Determine the original cost price of this item.
The profit on selling an article for Rs.425 is the same as the loss on selling it for Rs.355, then the cost price of the article is
A shopkeeper marked an article P% above its cost price and sold it for Rs. 1600 after giving a discount of 20%. If the shopkeeper had a loss of 8% on th...
While selling a Bike, Max gives a discount of 25% on the marked price. If he gives a discount of 30%, he earns Rs. 120 less as profit. The marked price...
When a seller sells his article for Rs. 32,060/- , he incurs 30% loss on the transaction. At what price should he sell the article to earn 10% profit on...
