If the standard deviation of a population is 5.5, what would be the population variance?
Find the sum of geometric progression, 40, 20, 10, 5, …..
In the data set given below, what is the product of the Median and the Mode?
{2.1, 5, 6, 7, 8, 9.3,11,15, 17, 19.21, 27, 31, 31, 33, 16.5, 14, 10}
Mean of a grouped data calculated using direct method, assumed mean method or step deviation method:
The number of terms needed to get Sn = 0 in the A.P of 63, 60, 57. . . . .
The mean of the sample data = 60 and median = 48. Find the mode of this distribution.
The arithmetic mean and geometric mean of two numbers are 7 and 2√10 respectively, then find the numbers.
How many three digit numbers are divisible by 5?
21 is divided into three parts which are in arithmetic progression (A.P.) in such a way that the sum of their square is 179. Find the smallest part.
Present average age of A, B and C together is 44 years. Age of B is 12 Years hence from now will be 260% more than age of A. Four years ago from now whi...
