Home
Class 11
MATHS
The following information relates to a s...

The following information relates to a sample of size 60:
`Sigma x^(2) =18000, Sigma x =960`. The variance is

A

6.63

B

16

C

22

D

44

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

In an experiment with 15 observations on x, the following results were available Sigma x^(2)=2830 , Sigma x=170 On observation that was 20, was found to be wrong and was replaced by the correct value 30. Then, the corrected variance is

The probability distribution of a random variable X taking values 1,2,3,4,5 is given c.Find the variance of X

If barx is the mean and sigma is the standard deviation of a distribution , then the coefficient of variation is ……….a) barx / sigma x100 b) sigma / barx c) sigma / barx x100 d) sigma / barx x50

Solve the following system of linear inequalities graphically. 4x + 3y le 60 , y ge 2x , x ge 3 , x,y ge 0

Determine whether each of the following relations is reflexive, symmetric and transitive. Relation R in the set A of human beings in a town at a particular time given by R={(x,y): x is exactly 7 cm taller than y }

Determine whether each of the following relations is reflexive, symmetric and transitive. Relation R in the set A of human beings in a town at a particular time given by R={(x,y): x and y workattesameplace}

Determine whether each of the following relations is reflexive, symmetric and transitive. Relation R in the set A of human beings in a town at a particular time given by R={(x,y): x and y live in the same locality}

Determine whether each of the following relations is reflexive, symmetric and transitive. Relation R in the set A of human beings in a town at a particular time given by R={(x,y): x is father of y }

Determine whether each of the following relations is reflexive, symmetric and transitive. Relation R in the set Z of all integers defined as R = {(x,y) :x-y is an integer}