If the variance of a discrete random variable x is v(x) = 1.6, then v(2x + 3) is

Question

01-07-2018
Mathematics

contestada

If the variance of a discrete random variable x is v(x) = 1.6, then v(2x + 3) is

Respuesta :

Otras preguntas

You get 77% on your math quiz. You had 100% in your math class before the test. Whats your new grade. 1) 77 2) 88 3) 99 4) 66

Sale 70% OFF! Gwen wants to buy a laptop computer. The original price is $720. What is the sale price?

Analysis: How does the author try to appeal to the emotions of American colinists in his attempt to build an argument and support for the American revolution? C

what is the equivalent ratio in the simplest terms for 16:8

Prove that (cos(3A) - sin(3A))/(1-2sin(2A)) ≡ cos(A) + sin(A) Topic : Trigonometry # Proving Trigonometric Identities # Double Angle Identities # Addition Iden

What is the relationship between metadata and a file extension? Responses Metadata is composed of extensions. Metadata is composed of extensions. An extension i

write the equation of the line with slope 4 that passes through the point (3.5,5) in slope- intercept.

State whether amino acids are found in animals, plants or both? 1) Animals 2) Plants 3) Both

What is bondage and discipline? (B-D)

sqdancefan sqdancefan · Answer 1 · 2018-07-01T05:40:55+02:00

sqdancefan sqdancefan

01-07-2018

Adding an offset to the data changes the mean, but not the variance. Multiplying the data by a constant changes the variance by the square of that constant.
v(a·x) = a²·v(x)

You will have v(2x+3) = 2²·v(x) = 4·1.6 = 6.4

Answer Link