Find var (3x+8) where x is a random variable, Mathematics

Assignment Help:

If Var(x) = 4, find Var (3x+8), where X is a random variable.


Var (ax+b) = a2 Var x

Var (3x+8) = 32 Var x = 36 

 


Related Discussions:- Find var (3x+8) where x is a random variable

Geometric progression (g.p.), Learning geometric progression ...

Learning geometric progression vis-á-vis arithmetic progression should make it easier. In geometric progression also we denote the first t

Multiplication and division should be learnt intermeshed, E1) Do you agree ...

E1) Do you agree that multiplication and division should be learnt intermeshed with each other, or not? Give reasons for your answer.  E2) How would you explain to children wh

Components of the vector - calculus, Components of the Vector We should...

Components of the Vector We should indicate that vectors are not restricted to two dimensional (2D) or three dimensional space (3D). Vectors can exist generally n-dimensional s

Express the gcd as a linear combination, Express the GCD of 48 and 18 as a ...

Express the GCD of 48 and 18 as a linear combination.              (Ans: Not unique) A=bq+r, where  o ≤  r 48=18x2+12 18=12x1+6 12=6x2+0 ∴ HCF (18,48) = 6 now  6

Addition involving negative numbers, Q. Addition Involving Negative Numbers...

Q. Addition Involving Negative Numbers? Ans. When you add together positive and negative numbers, there are essentially three possibilities that you can encounter. Let's e

Find the height of the lighthouse, Two  ships  are  sailing  in  the  sea  ...

Two  ships  are  sailing  in  the  sea  on  either  side  of  a  lighthouse;  the  angles  of depression of two ships as observed from the top of the lighthouse are 600  and 450 re

Mathematical methods of economic analysis, I need answers for these 10 exam...

I need answers for these 10 exam questions: 1.Input-output (Leontief) model: main assumptions and construction. Definition of productivity. Necessary condition of productivity of i

Equivalent fractions, what is 6/36 as two equivalent fractions 2/12 as tw...

what is 6/36 as two equivalent fractions 2/12 as two equivalent fractions 4/28 3/21 2/11 4/13=8/x 12/30=n/90 q/54=2/9 3/7 14/h=7/20

Purely imaginary number, It is totally possible that a or b could be zero a...

It is totally possible that a or b could be zero and thus in 16 i the real part is zero.  While the real part is zero we frequently will call the complex numbers a purely imaginar

Circls, in a given figure a,b,c and d are points on a circle such that ABC ...

in a given figure a,b,c and d are points on a circle such that ABC =40 and DAB= 60 find the measure of DBA

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd