Question
Suppose the relationship between Y and two explanatory
variables in true model is Yi = 5+2.4X1i-3.5X2i + ei . What is the value of beta(1) in the regression equation Yi = α + β 1 +ei if the values of correlation coefficient is 0.9 and variance of X1 and X2 is 2 and 8 respectivelySolution
Rs. 9,000 is invested in scheme ‘A’ offering simple interest of 20% p.a. and Rs. 6,500 in scheme ‘B’ offering simple interest of 8% p.a. What is...
A man invested Rs. 'C' at simple interest of 20% and Rs. 'C + 2000' at simple interest of 16% p.a., for 3 years each. If the interest earned from both i...
- Neha deposited Rs. 3000 at (R + 6)% per annum simple interest and received Rs. 2160 as interest in 3 years. What would be the interest if she invested the ...
At what rate percent per annum will a sum of Rs 5000 amount to Rs 5750 in 3 years at simple interest?
An investor has ₹20,000 to invest in two options: Investment X, offering a 12% annual return, and Investment Y, offering an 8% annual return. If the t...
A sum of Rs 10,000 is invested at r% per annum. The simple interest for 2 years is Rs 1,600. Find
(a) the rate of interest, and
(b) the co...
- An amount of Rs. 3,600 grows to Rs. 4,680 in 6 years under simple interest at the rate of r% per annum. If Rs. 4,500 is invested at a rate of 1.8r% per ann...
A certain amount of money, when invested at a simple interest rate of 'r%' per annum, grows to 6 times its original value in 24 y...
- Meena invests Rs. x in a fund that gives 18% simple interest per year. After 4 years, she earns interest of Rs. ‘1.4x – 800’. What is the value of x?
- Aarti invested Rs. ‘x’ at the rate of 13% p.a. simple interest for 4 years, and Pranav invested 60% of x at 10% p.a. compounded annually for 2 years. T...
