Home
Class 11
MATHS
If s.d. of X is sigma then s.d. of the v...

If s.d. of X is `sigma` then s.d. of the variable `U=(aX+b)/(c )` where a,b,c are constants is

A

`(a/c) sigma`

B

`|a/c| sigma`

C

`(a^2/c^2) sigma`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

The standard deviation of variate x_i is ?. Then standard deviation of the variate (ax_i+b)/c where a, b, c are constants is- (a) (a/c)sigma (b) |a/c| sigma (c) (a^2/c^2)sigma (d) Non of these

If two variates XandY are connected by the relation Y=(aX+b)/(c), wherea,b,c are constants such that ac<0, then sigma_(gamma)=(a)/(c)sigma_(X) (b) sigma_(gamma)=-(a)/(c)sigma_(X)( c) sigma_(gamma)=(a)/(c)sigma_(X)+b(d) none of these

If the standard deviation of a variable xi s sigma, then standard deviation of variable (aX+b)/(c) is a sigma( b) (a)/(c)sigma(c)|(a)/(c)| sigma(d)(a sigma+b)/(c)

If the S.D. of a variate R is sigma , then the S.D. of pR+q is

Equations of the form ax+by=c and bx+ay=d where a!=b