FREE Trial

The joint density function of the discrete random variable (X, Y) is given in Table. (a) Find E(XY). (b) Find

This problem has been solved!
Do you need an answer to a question different from the above? Ask your question!

Question:

The joint density function of the discrete random variable (X, Y) is given in Table.

(a) Find E(XY).

(b) Find Cov (X, Y).

(c) Find the correlation coefficient ?X, Y.

Transcribed Image Text:

xl 1 2 1 y 2 3 금 3 1515 6 금금 층 음음 0

Expert Answer:

Answer rating: 100% (QA)

x p i x i 1 6 1 6 1 6 2 1 6 1 12 1 12 3 1 12 1 12 0 3 6 2 x 4 12 3 x 2 12 3 2 3 5 y p i y View the full answer


answer-question
Related Book For  answer-question
Mathematical Statistics with Applications in R

Mathematical Statistics with Applications in R

ISBN: 978-0124171138

2nd edition

Authors: Chris P. Tsokos, K.M. Ramachandran

See More Books
View Solution
Create a free account to access the answer
Cannot find your solution?
Post a FREE question now and get an answer within minutes. * Average response time.
Posted Date: December 04, 2018 00:25:43
See More Questions

Students also viewed these mathematics questions

Q:
The probability mass function of a discrete random variable X is given in the following table: (a) Find P (X = 2). (b) Find P (X > 0). 2 -1 0.15 0.8 px) 0.1 0.4
A:
x 1 0 2 5......
Q:
The factorial moment-generating function of a discrete random variable X is given by Show that the rth derivative of FX(t) with respect to t at t = 1 is µ'(r), the rth factorial moment defined...
A:
Etc F x xt......
Q:
The joint mass function of the discrete random variable (X, Y) is given in Table 3.3.2. In table 3.3.2 (a) Find E (XY). (b) Find Cov (X, Y). (c) Find the correlation coefficient pX,Y. eN -
A:
a b Then c......
Q:
PWX Inc. has the following information for its years ended June 30: Required: Calculate the accounts receivable turnover and average collection period for 20X3 and 20X2. Comment on the trend. What...
A:
The collection period has increased from 33 9 days to 41 8 day......
Q:
A real-valued continuous-time segment of a signal x c (t) is sampled at a rate of 20,000 samples/sec, yielding a 1000-point finite-length discrete-time sequence x[n] that is nonzero in the interval 0...
A:
a b Since x n is real X k must b......
Q:
Use superposition to obtain vx in the circuit of Fig. 4.85. Check your result using PSpice. 30 10 20SI 0 V
A:
Let v s v x1 v x2 v x3 where v x1 v x2 and v x3 are due to the......
Q:
A sheet of aluminum foil measures 35.0 cm by 25.0 cm, and the volume is 1.36 cm 3 . What is the thickness of the foil in centimeters?
A:
0 001......
Q:
City Car Wash, Inc., has current assets of $180 million; property, plant, and equipment of $300 million; and other assets totaling $110 million. Current liabilities are $105 million and long-term...
A:
Req 1 Amounts in millions Assets Liabilities Stockholders Equity 180 105......
Q:
The GoGo Bunny is a hot toy this Christmas, and the manufacturer has decided to ration supply to all retailers. A large retail chain has two channels: a discount channel and a high-service channel....
A:
To determine the optimal allocation of GoGo Bunnies between the discount channel and the high servic......
Q:
Use the following information for the next questions. The index model for stock A has been estimated with the following result: rA - rf = -0.02 +1.2 (RM-rf)+eA, OM= 0.2 and RA=0.64. a) What is the...
A:
In a singleindex model a rA rf 0 02 1 2 rm rf eA If oM 0 2 and R2A 0 64 alpha 0 02 b c d r......
Q:
In an effort to improve their services, the Department of Motor Vehicles times how long, in minutes, it takes to serve each applicant. The manager of a facility takes five measurements each day, for...
A:
The upper controllimit of the resulting r chart is 11 46 The r chart is a control chart......
Q:
Calculate the double integral. R x + y dA, R= [1,2] [0, 1]
A:
solution To calculate the double integral we can use the polar coordinate transformation L......
Q:
What is the total execution time of this instruction sequence without forwarding and with full forwarding? What is the speedup achieved by adding full forwarding to a pipeline that had no forwarding?...
A:
To calculate the total execution time of the given instruction sequence without forwarding and with full forwarding we need to consider data dependenc......
Q:
Translate this C loop into MIPS instructions, assuming that our ISA requires one delay slot for every branch. Try to ill delay slots with non-NOP instructions when possible. You can assume that...
A:
Here s the translation of the given C loops into MIPS assembly instructions assuming that variables......
Q:
What is the molar mass of a gas found to have a density of 0.841 g/L at 415 K and 96.7 kPa?
A:
To find the molar mass of a gas with a known density temperature and pressure you can use the ide......
Q:
Let {N(t), t [0,)} be a Poisson process with rate . Let T 1 , T 2 , be the arrival times for this process. Find E[T+T + +T0|N(4) = 10].
A:
To find E T1 T2 T10 N 4 10 use the properties of the Poisson process and the conditional expectation......
Q:
Write a program that reads three integer numbers from the user and prints the numbers in ascending order. 2. Write a Java program to check whether a number is divisible by 5 and 11 or not. 3. Write a...
A:
Sure I can provide you with Java programs for each of the tasks you mentioned Here they are Java program to read and print three integer numbers in as......
Q:
How is use of the word consistent helpful in fraud reports?
A:
In some cases an investigator might say that a given action by a suspect is consistent with what w......
Q:
Using naive Gauss Elimination, solve the following set of equations. Substitute results back into the original equations to check your answers. (This can be done in code OR by hand, scanned, and...
A:
import numpy as np def gaussian elimination A b len A n......
Q:
Let X1, . . ., Xn be a random sample from the truncated exponential distribution with pdf Show that the MLE of y is min (Xi;). f(x) 0, otherwise
A:
use the log likelihood for simplicity we cannot maximiz......
Q:
Let X1, . . ., Xn be a random sample from the shifted exponential distribution With Obtain the MLEs of and . f(x) 0, otherwise
A:
lets use the log likelihood for simplicity T......
Q:
It is desired to study the effect of a special diet on systolic blood pressure. The following sample data are obtained for eight adults over 40 years of age before and after six months of this diet....
A:
Using the difference as after before we test vs at i We have Then Since we do not have en......
Literature And The Writing Process 8th Edition - ISBN: 0132248026 - Free Book