Let X, Y, and Z be independent random variables, each with mean and variance 2. (a) Find
Question:
(a) Find the expected value and variance of S = X + Y + Z.
(b) Find the expected value and variance of A = (1/3) (X + Y + Z).
(c) Find the expected value of S2 and A2.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 73% (15 reviews)
a 3 30 ...View the full answer
Answered By
Aysha Ali
my name is ayesha ali. i have done my matriculation in science topics with a+ . then i got admission in the field of computer science and technology in punjab college, lahore. i have passed my final examination of college with a+ also. after that, i got admission in the biggest university of pakistan which is university of the punjab. i am studying business and information technology in my university. i always stand first in my class. i am very brilliant client. my experts always appreciate my work. my projects are very popular in my university because i always complete my work with extreme devotion. i have a great knowledge about all major science topics. science topics always remain my favorite topics. i am also a home expert. i teach many clients at my home ranging from pre-school level to university level. my clients always show excellent result. i am expert in writing essays, reports, speeches, researches and all type of projects. i also have a vast knowledge about business, marketing, cost accounting and finance. i am also expert in making presentations on powerpoint and microsoft word. if you need any sort of help in any topic, please dont hesitate to consult with me. i will provide you the best work at a very reasonable price. i am quality oriented and i have 5 year experience in the following field.
matriculation in science topics; inter in computer science; bachelors in business and information technology
_embed src=http://www.clocklink.com/clocks/0018-orange.swf?timezone=usa_albany& width=200 height=200 wmode=transparent type=application/x-shockwave-flash_
4.40+
11+ Reviews
14+ Question Solved
Related Book For
Question Posted:
Students also viewed these Statistics questions
-
Let X1, . . . be independent random variables with the common distribution function F, and suppose they are independent of N, a geometric random variable with parameter p. Let M = max(X1, . . . ,XN)....
-
Let X 1 and X 2 be independent random variables each having the probability distribution show that the random variables Y 1 and Y 2 are independent when Y 1 = X 1 + X 2 and Y 2 ? X 1 (X +X 2 ). x>0....
-
Let X1,..., Xn be independent random variables with densities Prove that T = mini(Xi/i) is a sufficient statistic for θ. fx.(z0) = et6-7 I < i8. 18-r
-
The Best Buy Co. Inc. 10-K report has the following footnote related to leasing activities. The future minimum lease payments under our capital and operating leases by fiscal year (not includ- ing...
-
1. At each stage in a decision process, a computer program has three branches. There are 10 stages at which these branches appear. How many different paths could the process follow? 2. Sixty people...
-
SFAS No. 160 required that goodwill be measured at 100 percent of its fair value. Team 1: Argue that goodwill reported in balance sheets should be measured only at the value purchased by the parent...
-
Calculate from the following data: 1. BEP (in Rs. ) 2. No. of units to be sold to earn a profit of Rs. 75,000. 3. Units to be sold to earn 5% profit on sales. If: Selling P.rice (p.u.) Rs. 20...
-
The inventory and sales data for this year for G. Rabbit Company are as follows: Required Using the above data from G. Rabbit Company, compute the following: a. The accounts receivable turnover in...
-
TRUE FALSE. Write Tithe statement is true and the statement is fine. 1) Adjusting entries are designed primarily to correct erroes made by bookkeepers ) 2) 2) Before making adjusting entries at the...
-
Calculate the number of days for the workshops. 11 In cell E5, enter a formula to calculate the number of days for the first workshop. Add 1 to the results to include the total number of days,...
-
Let X be a random variable with density function fX. Show, using elementary calculus, that the function Ф(a) = E((X a)2) takes its minimum value when a = (X), and in that case (a) = 2(X).
-
The Pilsdorff Beer Company runs a fleet of trucks along the 100 mile road from Hangtown to Dry Gulch. The trucks are old, and are apt to break down at any point along the road with equal probability....
-
What is meant by productive capacity in services?
-
Is there a difference between a Leader and a Manager; if yes, what and what are the differences? What is the message of the video ? https://youtu.be/TQhns5AwAkA
-
Thomas Inc. purchased 90% of Tracy Co. for $990,000 when the book value of Tracy was $1,000,000. There was no premium paid by Thomas. Tracy currently has 100,000 shares outstanding and a book value...
-
Troy Engines, Ltd., manufactures a variety of engines for use in heavy equipment. The company has always produced all of the necessary parts for its engines, including all of the carburetors. An...
-
A Community Hospital has two (2) service departments: Maintenance and Food Services. The hospital has three (3) patient care units, namely: General Medicine, OB, and Surgery. Additional information...
-
The following link is for the United States International Trade Commission database on current tariffs that the United States has in place: https://dataweb.usitc.gov/tariff/database This link is for...
-
How can mental models be helpful when solving categorical syllogisms?
-
Troy is a qualified radiologist who operates a successful radiology practice from purpose- built rooms attached to his house. Troy works in the practice three days a week, and the other two days he...
-
Name two companies that leveraged viral promotion to compete.
-
How do warehouses and distribution centers differ? What is cross-docking and why might a company choose to cross-dock a product? What kinds of products can be delivered electronically? What kinds...
-
Strawberry Inc. has historically been an all-equity firm. The analyst expects EBIT to be $1.5B in perpetuity starting one year from now. The cost of equity for the company is 11.5% and the tax rate...
-
Guzman company received a 60- day, 5 % note for 54,000 dated July 12 from a customer on account. Determine the due date on note. Determine the maturity value of the note and journalize the entry of...
Study smarter with the SolutionInn App