Home
Class 14
MATHS
In a frequency distribution having class...

In a frequency distribution having class intervals 0-10, 10-20, 20-30 and 30-40, the respective frequencies are `x, x + 8, x - 2 and x - 4` and the arithmetic mean of the distribution is 17.8
The value of `x` is

A

3

B

6

C

8

D

12

Text Solution

AI Generated Solution

Promotional Banner

Similar Questions

Explore conceptually related problems

Directions : Consider the following for the. next three (3) questions that follow : In a frequency distribution having class intervals 0-10, 10-20, 20-30 and 30-40, the respective frequencies are X, x + 8, x - 2 and x - 4 and the arithmetic mean of the distribution is 17.8 The modal class is-

In a frequency distribution having class intervals 0-10, 10-20, 20-30 and 30-40, the respective frequencies are X, x + 8, x - 2 and x - 4 and the arithmetic mean of the distribution is 17.8 The median lies in which one of the following class intervals ?

Find the mean of the following frequency distributions: Class interval: 0-10 10-20 20-30 30-40 40-50 Frequency: 9 12 15 10 14

(x + 2), x and (x - 1) are the frequencies of the numbers 12, 15 and 20 respectively. If the mean of the distribution is 14.5, the value of x is

Find the mean of the following frequency distributions: Class interval: 0-8 8-16 16-24 24-32 32-40 Frequency: 5 6 4 3 2

Find the mean of the following frequency distribution: Class-interval: 0-10 10-20 20-30 30-40 40-50 No. of workers f: 7 10 15 8 10

If the class intervals of a frequency distribution are 1-10, 11-20, 21-30, ….,51-60 then the size of even class is

Find the mean of the following frequency distributions: Class interval: 0-8 8-16 16-24 24-32 32-40 Frequency: 5 9 10 8 8

Find the mean of the following frequency distributions: Class interval: 0-8 8-16 16-24 24-32 32-40 Frequency: 6 7 10 8 9

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