Question

For each one of the following formulas, identify those that are always true. All integrals are...

For each one of the following formulas, identify those that are always true. All integrals are meant to be from −∞ to ∞ .

fX,Z(a,b)=∫fX,Y,Z(a′,b,c)da′

Engineering   Computer-Science   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Here's the screenshot of your question

Answer: NO

If ∫fX,Y,Z(a,b,c) is the joint distribution of X, Y, Z random variables then, the marginal distribution X, Y is
fX,Y(a,b,c)=∫fX,Y,Z(a,b,c)dc

Similarly,
fX,Z(a,c)=∫fX,Y,Z(a,b,c)db

=>fX,Z(a,b)=∫fX,Y,Z(a′,b,c)da′
NO, its not always true

PLEASE LIKE IT RAISE YOUR THUMBS UP
IF YOU ARE HAVING ANY DOUBT FEEL FREE TO ASK IN COMMENT SECTION

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Identify all those statements below that are TRUE. Choose one or more. A Patents provide a...
Identify all those statements below that are TRUE. Choose one or more. A Patents provide a more exclusive right than copyrights. B Patents last longer than copyrights. C Trademarks may last indefinitely. D Firms are not legally prevented from discovering and using one another's trade secrets through reverse engineering. Identify all those ways in which either inventions or literary and artistic creativity have been encouraged. Choose one or more. A First mover advantage. B Privately funded research in universities. C...
Which of the following probability formulas are always true for any events A and B. Select...
Which of the following probability formulas are always true for any events A and B. Select all that apply: a. P(A and B)=P(B|A)*P(A) b. P(A and B)=P(A)+P(B) c. P(A or B)=P(A)+P(B) d. P(A|B)=P(A) e. P(A|B)=P(A and B) / P(B) f. P(A or B)=P(A)+P(B)-P(A and B) g. P(not A)=1-P(A) h. P(A and B)=P(A)*P(B)
Identify the correct substitution (using u, du) to make in each of the following integrals. Then,...
Identify the correct substitution (using u, du) to make in each of the following integrals. Then, compute the integral. a)  ∫ 8x(x²-3)⁷dx b)  ∫ [√cot(x)] csc²(x) dx c)  ∫ cos(x)(sin³(x)+3sin²(x)a²+a³)dx where a is some real number (Hint for C: Work smarter not harder)
Use the following formulas to set up two integrals for the arc length from (0, 0)...
Use the following formulas to set up two integrals for the arc length from (0, 0) to (1, 1). Observe that one of these is an improper integral. (I)  L = b 1 + dy dx 2 dx a (II)  L = d 1 + dx dy 2 dy c L = 1 √1+49x(23​)​    dx 0 = 1.4397    L = 1 √1+94​ydy    dy 0 = 1.4397    (c) Find the length of the arc of this curve from (−1, 1) to...
For each of the following statements, identify whether the statement is true or false, and explain...
For each of the following statements, identify whether the statement is true or false, and explain why. Please limit each response to no more than 2 sentences. f) A weighted mean is preferred over an unweighted mean (i.e. a regular sample mean) when each observation has its own unique weight. g) A z-score is a percentile. h) Assuming the population is normally distributed, the standard deviation of the sampling distribution of the sample mean will always be less than or...
For each of the following statement, determine it is “always true” or “always false”. Explain your...
For each of the following statement, determine it is “always true” or “always false”. Explain your answer. (a) For any matrix A, the matrices A and −A have the same row space. (b) For any matrix A, the matrices A and −A have the same null space. (c) For any matrix A, if A has nullity 0, then A is nonsingular.
For each of the following propositions, write in all comparisons that make it always true among...
For each of the following propositions, write in all comparisons that make it always true among the four possibilities: < > == != If none are guaranteed to hold, please indicate that explicitly by marking it with an X. Assume the variables are declared with int x,y; and initialized to some unknown values. You may assume that int’s are 32 bits wide, char’s are 8 bits wide and that right shift is arithmetical on signed numbers and logical on unsigned...
Identify each of the following statements as true or false and breifly explain why in one...
Identify each of the following statements as true or false and breifly explain why in one or two short sentences: a)In the long run equilibrium of a perfectly competitive market, the average cost of firms has to be higher than the equilibrium price. b) "The government often provides subsidies to agricultural sector is to reduce food prices in enhance farmers income. As a result both total consumption and total output increases. Hence the total welfare of the economy increases." c)"When...
1. For each of the following statements about bankruptcy, label ALL those that are true: a)...
1. For each of the following statements about bankruptcy, label ALL those that are true: a) A firm that has difficulty convincing its holdouts to exchange their bonds may force this solution on them by a prepackaged bankruptcy if a majority of its bondholders are in favor of the exchange offer. b) A manager of a firm that is unable to post an operating profit would prefer traditional Chapter 11 over an exchange offer c) A firm with no hope...
Which of the following statements is true. Select one: a. The expected value of a discrete...
Which of the following statements is true. Select one: a. The expected value of a discrete random variable is the outcome that is most likely to occur. b. If the true model is Y = β1 + β2 X1 + β3 X2 + u, but you estimate Y = β1 + β2 X1 + u, your estimate of β2 will always be biased. c. In an OLS regression, if we change the dependent variable from Earnings to log(Earnings), the R-squared...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT