Answered step by step

Verified Expert Solution

Link Copied!

Question

1 Approved Answer

Posted on Oct 10, 2024

If X and Y are independent and identically distributed with mean 6 and variance 36 And let x and b be two uncorrelated random variables.

If X and Y are independent and identically distributed with mean 6 and variance 36

And let x and b be two uncorrelated random variables.

1.What is the variance of X+Y?

2.If the covariance between X and Y is 30, what is the variance of X+Y?

Step by Step Solution

There are 3 Steps involved in it

Step: 1

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

Step: 3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Statistical Techniques in Business and Economics

Authors: Douglas A. Lind, William G Marchal

17th edition

1259666360, 978-1259666360

More Books

Students also viewed these Mathematics questions

Question

★★★★★

Riley Manufacturing has a current ratio of 3:1 on December 31, 2018. Indicate whether each of the following transactions would increase (+), decrease (), or have no effect (NA) on Riley's current...

Answered: 1 week ago

Question

★★★★★

As the engineer of the $11.5 billion planned purchase of Sears, Roebuck & Co. by Kmart Holding Corp., Edward Lampert is stepping out of the shadows of Wall Street to make a highprofile bet that the...

Answered: 1 week ago

Question

★★★★★

9. What is the purpose of the scope management plan?

Answered: 1 week ago

Question

★★★★★

Terracotta, Inc., makes toy soldiers. Company management believes that a new model would sell well at a price of $65. The company estimates unit materials costs to be $16 for the model, and overhead...

Answered: 1 week ago

Question

★★★★★

The function that models the consumption of a certain medication over the years 2000-2010 is f(x)=115.21x + 2245, where x is the number of years after 2000 and y is measured in grams per 100,000...

Answered: 1 week ago

Question

★★★★★

Casey Nelson is a divisional manager for Pigeon Company. His annual pay raises are largely determined by his divisions return on investment (ROI), which has been above 23% each of the last three...

Answered: 1 week ago

Question

★★★★★

How can I solve this? I need a step by step explanation for my command prompt please. Applying the Daubert Standard to Forensic Evidence (4e) T Answered: 1 week ago

Answered: 1 week ago

Question

★★★★★

1. (6 pts) Fluid at velocity U and temperature To flows into a long, isothermal circular tube at temperate Tw (with Tw> T). Assume Rep = 200 and Pr = 5. a. Sketch qualitative velocity profiles (u(r))...

Answered: 1 week ago

Question

★★★★★

1-Which functional form (linear, quadratic, cubic) is most suitable to your data? Construct a scatter diagram with dots. What is the best trendline? 2- Using OLS, estimate the firm's short-run...

Answered: 1 week ago

Question

★★★★★

The following is about aerodynamics. I included formulas that might be useful to solve this problem Consider using the source panel method to solve a uniform flow V_ with an angle of attack a (alpha)...

Answered: 1 week ago

Question

★★★★★

This HW is Type-I, i.e., collaboration is allowed, but in a very limited sense. You may discuss and work together in a group, but in the end, you will need to self-certify that you can solve all the...

Answered: 1 week ago

Previous Question Next Question