Real Random Variable and Multivariate Normal Distribution Worksheet

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9. Out of the 39 countries participating in the Eurovision Song contest, how many possibilities are
there for the top 3 places (assuming that there are no ties)?
[1 Point]
(A)
(B)
39!
36!
(C) 3
(D) 393
(E) (3).
10. Suppose that X is a real random variable with values in {1, 2, 3}. It is known that P[X = 1] = }
and E(X) = 1. How many distinct choices are there for the law of Py?
[1 Point]
(A) None.
(B) 1.
(C) 2.
(D) Infinitely many, but countably many.
(E) Infinitely many, and overcountably many.
11. Let X > 0 be a real random variable. Suppose that it is only known that E VX < 2. What is the [] smallest possible value for a for which one can say P [X > 9]

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Tags:
Normal Distribution

Math Problems

Mathematic Equations

Real Random Variable

Multivariate Distribution

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