If the frequencies of first four numbers out of 1, 2, 4, 6, 8 are 2, 3, 3, 2 respectively, then the frequency of 8 if their A.M. is 5,

In a frequency distribution table the numbers 4,6 and 8 have frequencies (x+2), x, (x-1) respectively. If their mean is 8 then x is-

Consider the data 2,3,2,4,5,6 , 4, 2, 3, 3, 7 , 8 , 2,2 . The frequency of 2 is "_______"

The numbers 3, 5, 6 and 4 have frequencies of x, x + 2, x -8 and x+ 6, respectively। If their mean is 4 then the value of x is

If A=[[1, 2, 3], [3, 4, 5], [4, 6, 8]] , then

The number of four digit odd numbers that can be formed with 1,2,3,4,5,6,7,8,9 is

Find the mode of the observations 8, 2, 3, 4, 6, 3, 2, 4, 5, 4, 1, 1, 4, 6, and 8.

{:("Marks (obtained out of 10)", 4,5,7,8,9,10),("Frequency",5,10,8,6,12,9):} The frequency of more than 8 marks is 21.

Four numbers are in the ratio of 2 : 5 : 3 : 8 respectively. If the sum of these four numbers is 432, then what is the sum of first and fourth number?