Show that Cov(X, Y) = E[XY]E[X]E[Y], as a consequence of Equation 4.13. Equation 4.13. Cov(X, Y) =
Question:
Show that Cov(X, Y) = E[XY]−E[X]E[Y], as a consequence of Equation 4.13.
Equation 4.13.
Cov(X, Y) = E[(X − μX)(Y − μY)].
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 46% (13 reviews)
EX x Y y EXY x Y y X ...View the full answer
Answered By
Milan Mondal
I am milan mondal have done my Msc in physics (special astrophysics and relativity) from the University of burdwan and Bed in physical science from the same University.
From 2018 I am working as pgt physics teacher in kendriya vidyalaya no2 kharagpur ,west bengal. And also I am doing advanced physics expert in chegg.com .also I teach Bsc physics .
I love to teach physics and acience.
If you give me a chance I will give my best to you.
5.00+
4+ Reviews
10+ Question Solved
Related Book For
Question Posted:
Students also viewed these Mathematics questions
-
Suppose that X and Y are independent n-dimensional random vectors for which the covariance matrices Cov(X) and Cov(Y) exist. Show that Cov(X + Y) = Cov(X) + Cov(Y).
-
Let X and Y be random variables with Show that Cov(X, Y) = 0 but that X and Y are dependent. 4x- fx.y(x,y)=( elsewhere 0,
-
Let X and Y be random variables. The covariance Cov(X, Y) is defined by (see Exercise 6.2.23) cov (X, Y) = E((X (X))(Y (Y))) . (a) Show that cov(X, Y) = E (XY) E(X) E(Y). (b) Using (a), show that...
-
Which statement about the Java variable and literal is NOT true? a. A global variablewill be initalised by the complier automatically. b. Literals can also be used as the lvalue in an express. c. An...
-
Sierra Design is an interior design firm. The firm uses a job cost system in which each client is a different "job." Sierra Design traces direct labor, licensing costs, and travel costs directly to...
-
Why is emphasis usually given to direct tests of the accounts receivable balance rather than the transactions that created that balance?
-
JoAnn's Bridal Shops earned net income of \($80,000,\) which included depreciation of \($15,000.\) JoAnn's paid \($120,000\) for a building and borrowed \($60,000\) on a long-term note payable. How...
-
An analyst for an oil company has developed a formal linear regression model to predict the sales of 50 of their filling stations. The estimated model is Ŷ = b0 + b1 X1 where...
-
Investment expected to generate cash flow of $100,000 one year from today. Each subsequent cash flow generated by the investment will come one year after the previous cash flow and is expected to be...
-
X Ltd. has 10 lakhs equity shares outstanding at the beginning of the accounting year 2016. The appropriate P/E ratio for the industry in which D Ltd. is 8.35. The earnings per share is Rs. 15 in the...
-
Let E[X] = 1, E[X 2 ] = 2, E[X 3 ] = 5, and E[X 4 ] = 15. Also E[Y] = 2, E[Y 2 ] = 6, E[Y 3 ] = 22, and E[Y 4 ] = 94. Suppose X and Y are independent. (a) Find V[3X 2 Y]. (b) Find E[X 4 Y 4 ]. (c)...
-
Suppose E[X] = 1, V[X] = 2, E[Y] = 3, V[Y] = 4, and Cov(X, Y) = 1. Find Cov(3X + 1, 2Y 8).
-
Calculate the pressure change \(\left(p_{2}-p_{1} ight)\) for the jet pump shown in Fig. P5.52. The fluid is \(20{ }^{\circ} \mathrm{C}\) water. Assume negligible friction at the walls and uniform...
-
1. A ball rolls downhill with a constant acceleration of 4 m/s*. If it started from rest, how long will it take to reach a speed of 20 m/s? 2. A hall rolls downhill with a constant acceleration of 4...
-
You own "Portrait Solutions" ( a portrait studio) where your employees take customer family portraits. A standard family portrait should take your employees 3/4 of an hour (45 minutes) to do. The...
-
Free Trade Agreements, where you should argue about the following points: 1) Purpose, advantages and disadvantages of treaties. 2) Different treaties both: America, Europe and Asia Modify your...
-
Beginning inventory Merchandise Finished goods Cost of merchandise purchased Cost of goods manufactured Ending inventory Merchandise Finished goods Unimart Bare Manufacturing $ 316,000 $ 632,000...
-
How does it help companies to rely on seasonality and past performance if those items exist in their data? What unforeseen factors could impact seasonality that managers would need to consider...
-
How would you address conflict due to cultural differences in a team you lead that has members who are from China, Venezuela, and the United States?
-
A red card is illuminated by red light. What color will the card appear? What if its illuminated by blue light?
-
To determine his DSL Internet connection speed, Shawn divides up the day into four parts: morning, midday, evening, and late night. He then measures his Internet connection speed at 5 randomly...
-
24 Hour Fitness wants to administer a satisfaction survey to its current members. Using its membership roster, the club randomly selects 40 club members and asks them about their level of...
-
To obtain students opinions about proposed changes to course registration procedures, the administration of a small college asked for faculty volunteers who were willing to administer a survey in one...
-
Simplify. 9u6x4 4 3 3wx +9x
-
Majesty Company uses target costing to ensure that its products are profitable. Assume Majesty is planning to introduce a new product with the following estimates: Annual demand Estimated market...
-
Summarise the main features of households with financial and mortgage debt by age given in Tables 1a and 1b below and comment on differences between and within age groups over time. Table1a...
Study smarter with the SolutionInn App