O 1/12 Question * A fair die is thrown five times. Let X be the random variable "number of getting an ev number in the 5 throws Then P(X ≥ 4) = O 0.1875 0.0312 h 0.8125 0.5432 Question Suppose that X and Y are random variables with E(X) = 2. E(Y) = 5 and E(X) = 8. E(Y) = 30 and co(X + 2Y 3X + 11)=-12, then cov(2X+3.-3Y+4) is equal to: Hint: covlax + by CX + Y) acV(X) = bdVY+ (bc + ad)cov(X,Y) -64 O Ei OO -30
O 1/12 Question * A fair die is thrown five times. Let X be the random variable "number of getting an ev number in the 5 throws Then P(X ≥ 4) = O 0.1875 0.0312 h 0.8125 0.5432 Question Suppose that X and Y are random variables with E(X) = 2. E(Y) = 5 and E(X) = 8. E(Y) = 30 and co(X + 2Y 3X + 11)=-12, then cov(2X+3.-3Y+4) is equal to: Hint: covlax + by CX + Y) acV(X) = bdVY+ (bc + ad)cov(X,Y) -64 O Ei OO -30
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:O 1/12
Question *
A fair die is thrown five times. Let X be the random variable "number of getting an ev
number in the 5 throws
Then P(X ≥ 4) =
O 0.1875
0.0312
h
0.8125
0.5432
Question
Suppose that X and Y are random variables with E(X) = 2. E(Y) = 5 and E(X) = 8.
E(Y) = 30 and co(X + 2Y 3X + 11)=-12, then cov(2X+3.-3Y+4) is equal to:
Hint: covlax + by CX + Y) acV(X) = bdVY+ (bc + ad)cov(X,Y)
-64
O Ei
OO
-30
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