A systematic sample does not yield good result, if -
a 1 in x systematic random sample is obtained by randomly selecting one of the first "x" units in the sampling frame and then selecting every subsequent xth unit Its generally used in a continuous process. First observation is chosen randomly and then other observations are picked by adding some constant "c" to the successive observations. c = N/n where N = size of population and n = size of sample It's important to check that the data is not having a periodic property. (Foe eg. If sales are analysed and x is taken as 7, then sample will include the sales on the same day of every week)
Simple interest and compound interest (compounded annually) earned on a sum at the end of 2 years at a certain rate of interest p.a. are Rs. 2500 and Rs...
Rs.9000 is divided into two parts such that if one part be invested at 5% and the other at 7%, the annual interest from both the investments is Rs. 580....
The compound interest on a certain amount for 2 years at 4% per annum is ₹ 1,428 if interest is compounded annually. Find the simple interest on that ...
The difference between compound interest and simple interest at rate of 24% per annum for 2 years is Rs. 288. Find the simple interest obtained on same ...
A sum of money lent at compound interest at the rate of 10% per annum is paid back in three equal instalments of Rs 3,993. Find the sum?
If a sum when placed at compound interest grows to Rs.6,400 in 2 yrs and to Rs. 8,000 in 3 yrs, find the rate percent p.a.
...A took loan from a bank at the rate of 17%p.a. simple interest. After 5 years he had to pay Rs.6800 interest only for the period. The principal amount b...
The ratio between the interest obtained from scheme L and M in 6 and 4 years is 4:3 respectively. In scheme L, Rs. 6000 was deposited on simple interest...
A and B started a business with initial investments of Rs. 25000 and Rs. 40000 respectively. After one year, a profit of Rs. 3250 is earned. A being a w...
Mark invested Rs 15,000 in a scheme at simple interest 20% per annum. After three years he withdrew the principal amount plus invested the entire amount...
