Suppose that you have two random variables, X and U, such that E[U[X] = 0. Show that this implies (a) E[U] = 0. (b) cov (X,U) = 0. Hint 1: I posted an old set of slides that reviews expectations and variances. Hint 2: Section 2.3 of Stock and Watson provides a nice review of what happens when you have two random variables.
Suppose that you have two random variables, X and U, such that E[U[X] = 0. Show that this implies (a) E[U] = 0. (b) cov (X,U) = 0. Hint 1: I posted an old set of slides that reviews expectations and variances. Hint 2: Section 2.3 of Stock and Watson provides a nice review of what happens when you have two random variables.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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not use ai please
![Suppose that you have two random variables, X and U, such that E[U[X] = 0. Show
that this implies
(a) E[U] = 0.
(b) cov (X,U) = 0.
Hint 1: I posted an old set of slides that reviews expectations and variances.
Hint 2: Section 2.3 of Stock and Watson provides a nice review of what happens when
you have two random variables.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4f5ca5f3-5e16-4dee-bbb6-d532d4f47299%2Fe2925e8d-fbad-4231-ae5f-000a07106c8d%2Fjeajv9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Suppose that you have two random variables, X and U, such that E[U[X] = 0. Show
that this implies
(a) E[U] = 0.
(b) cov (X,U) = 0.
Hint 1: I posted an old set of slides that reviews expectations and variances.
Hint 2: Section 2.3 of Stock and Watson provides a nice review of what happens when
you have two random variables.
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