Independent normally distributed random variables

Assignment Help Basic Statistics

Reference no: EM13240458

X, Y, and Z are independent normally distributed random variables. The following information is known about these three variables:

E (X) =4, Var (X)=10,

E (Y)=-5, Var (Y)=6,

E(Z)=3, Var(Z)=2.

Let W= 2X-Y+3Z,

Find Var(W)

Reference no: EM13240458

Questions Cloud

Aspects of a war film depicting a real-life military battle : Compare aspects of the Bayeux Tapestry to aspects of a war film depicting a real-life military battle. How do both the Bayeux Tapestry and the film influence the viewer to be more sympathetic to one side over another?

Describe fresh aqueous aspartame : Indicate which compounds present i) in the reactants and ii) in the products from this lab experiment could be expected to give positive tests with a) permanganate and b) ceric ammonium nitrate.

What is the largest mass car that the system can lift : In a hydraulic system, the larger piston to be used to lift a 1670kg car has a diameter of 24.2cm, If instead compressed air at 115 psi of pressure is used, what is the largest mass car (in kg) that the system can lift

Compare and contrast islamic calligraphy at alhambra : Considering that calligraphy and mosaic are visual representations of religious belief, compare and contrast Islamic calligraphy at Alhambra and Dome of the Rock to Christian mosaics at Ravenna. What do you think each art form communicates about the ..

Independent normally distributed random variables : X, Y, and Z are independent normally distributed random variables. The following information is known about these three variables:

What is the minimum sample size needed for each group : Suppose I have an experiment with 5 groups and 5 DVs and intend to conduct MANOVA to determine if there are mean differences between groups,

Explain what is the molar solubility of caf2 : What is the molar solubility of CaF2 in 0.10 M NaF solution at 25°C? The Ksp for CaF2 is 1.5x10^-10.

What should the blood cholesterol level of a young : Too much cholesterol in the blood increases the risk of heart disease. Young women are generally less afflicted by high cholesterol than other groups. The cholesterol levels for women aged 20 to 34 follow an approximately Normal distribution with mea..

Roman philosophy reflected in the modern western worldview : Describe a specific example of life in Ancient Rome that is found in contemporary life in the U.S. Describe one way that you see a particular tenet of Roman philosophy reflected in the modern Western worldview.

User Account

All Pages