If E(X) = 100, E(Y) = 225, Var(X) = 10, Var(Y) = 25, and Cov(X, Y) =

Question:

If E(X) = 100, E(Y) = 225, Var(X) = 10, Var(Y) = 25, and Cov(X, Y) = 10, find
a) E(70X − 35Y).
b) Var(70X + 35Y).
c) Var(70X − 35Y).
d) If Cov(X, Y) = −5, find Var(70X − 35Y).

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Principles Of Managerial Statistics And Data Science

ISBN: 9781119486411

1st Edition

Authors: Roberto Rivera

See More Books

Question Posted: Aug 07, 2023 08:23 AM

See More Questions

Carol Harris, Ph.D, CPA, is a single taxpayer and she lives at 674 Yankee Street, Durham, NC 27409. Her Social Security number is 793-52-4335. Carol is an Associate Professor of Accounting at a local...
The following additional information is available for the Dr. Ivan and Irene Incisor family from Chapters 1-6. On December 12, Irene purchased the building where her store is located. She paid...
The following additional information is available for the Dr. Ivan and Irene Incisor family from Chapters 1-7. Ivan sold the following securities during the year and received a Form 1099-B that...
The Kroger Company reported the following data in its annual report (in millions). Instructions a. Compute Kroger?s inventory turnovers for fiscal years ending January 28, 2017, and January 30, 2016,...
Why is it difficult to predict the size of the accelerator?
Balance this chemical equation and classify it as combination, decomposition, single-replacement, or double-replacement: K 2 SO 3 + S 8 K 2 S 2 O 3
Train a regression model to predict Quality using the entire training data set. This is our Global Model.
Ebanks, Brown, and Thomas are partners. They carry on a business jointly as EBT surveyors and share profits and losses in the ratio 25:45: 30. The trading account profit as at 31 December 2021 was...
Find the value of X given the following information: Setup Cost =$100 Carrying Cost/unit/period =$1 Lot Sizing Procedure: LFL Total Costs = Total Setup costs + Total Carrying costs =X
If X 1 ,X 2 , and X 3 each are independent and have an expected value of 10, find X+X+X 3 ( X + X + X ) ). 3 a) E b) Var
If E(X) = 40, E(Y) = 25, Var(X) = 3, Var(Y) = 2, and X is independent of Y, find a) E(5). b) E(2X). c) E(3X + 5Y). d) E(7X 3Y). e) Var(12). f) Var(7Y). g) Var(3X + 5Y). h) Var(3X 5Y).
A ball is dropped from a height of 1 m and loses 10 percent of its kinetic energy when it bounces on the ground. To what height does it then rise?
What is an incident in which a famous person wore or used a product (not as part of a paid endorsement or ad) and it caused a buying frenzy. Explain how the manufacturer or service provider reacted
What is a "heavyweight project team" and how does it differ from the traditional approach used for organizing development projects at Eli Lilly?This consists of two issues:First, an evaluation of the...
Consider the closed-loop system shown in Figure P11.6, where the transfer function of the process is that of a second-order system, i.e. k Ts +25TS +1 G,(s)= Y sp(s) E(s) U(s) Y(s) Ge(s) Gp(s) Figure...
1. Do you feel we have come along way with inventory in 10 years? 2. How did COVID affect the supply chain in your current hospital? Were any of the inventory systems/topics used, or relevant or...
Identify at least one way in which your writing skills have improved this semester and reflect on how you might use this skill in your career. You can include research, presentation, and report...
An opinion column in the Wall Street Journal observes about "defensive medicine" that "many physicians maintain that fear of lawsuits significantly affects the practice of medicine, and that reform...
Write the given system without the use of matrices. D) - ()- d (x sin t + 8 (2+ 1)
What are the advantages and disadvantages of using social media for advertising, brand building, market research, and customer service?
What issues must be addressed when building an e-commerce presence ?
Analyze Walmart and Amazon.com using the competitive forces and value chain models.
Flexible manufacturing places new demands on the management accounting information system and how performance is evaluated. In response, a company should a. institute practices that reduce switching...
Revenue and expense items and components of other comprehensive income can be reported in the statement of shareholders' equity using: U.S. GAAP. IFRS. Both U.S. GAAP and IFRS. Neither U.S. GAAP nor...
Kirk and Spock formed the Enterprise Company in 2010 as equal owners. Kirk contributed land held an investment ($50,000 basis; $100,000 FMV), and Spock contributed $100,000 cash. The land was used in...

If E(X) = 100, E(Y) = 225, Var(X) = 10, Var(Y) = 25, and Cov(X, Y) =

Question:

Step by Step Answer:

Given the information provided lets calculate the requested values a E70X 35YUsing the linear...View the full answer

Principles Of Managerial Statistics And Data Science

Students also viewed these Business questions