uniform[a, b] and Y~ N(a, For 0 < a < b = 3a, suppose two random variables X b-). From these two random variables, we can define the following new random variable W =X+ Y where E(W) = 6 and Var(W) = a. Question 6.59. Which of the following is true?s iol tollsrmotni pniwollot eri pnieu a. E(X) > E( eeldehev mobnsi Insbneqebni ns s16 o1srl terii seoqqua b. E(Y) > E(X) c. Cov(X, Y) < 0 d. Cov(X, Y) > 0 mobnsi wan owl eniteb a'le Ye1erlw bnis

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6.59 - 6.62
Question 6.58. If P(Z1 + Z2 sk) = P(Z1 - Z2 2 k), what is k? enitab e'leJ 88.8 nota
а. 25
Y is
b. 50
starc. 75
d. 100
PIY 4) P 1
Si ai Jsriw
ZY-XE)9 bns (,0M lemon bisbnela s et S A8.0 noilee
8
Use the following information for the next 4 questions.
For 0 < a < b = 3a, suppose two random variables X ~ uniform[a, b] and Y ~ N(a,
b-). From these two random variables, we can define the following new random variable
W = X+ Y where E(W) = 6 and Var(W) = a.
Question 6.59. Which of the following is true?s iol tiollermoini pniwollot eri pnieu
a. E(X) > E(W)
b. E(Y) > E(X)
c. Cov(X, Y) <0v mobaBi wan owl eniteb a'lel.()M-Y e19rlw bns
d. Cov(X, Y) > 0
eeldshsv mobnsi Inebnegebni nS s1s 1er leri eeogqua
Question 6.60. What is SD(W)?
а. 1
b. 2
с. 3
Sn ai JerW 8.3 noiteeuO
d. 4
Question 6.61. Let's Z be a standard normal random variable N(0,1). What is k satisfying
P(Y< k) = P(Z < 1.5)?
lons
а. 9
b. 10
q 30
4 el JerW ae.8 noteeu
С. 11
0.s
d. 12
Question 6.62. What is Var(3X)?
a. 8
b. 12
с. 16
d. 20
ON
OT b
Transcribed Image Text:Question 6.58. If P(Z1 + Z2 sk) = P(Z1 - Z2 2 k), what is k? enitab e'leJ 88.8 nota а. 25 Y is b. 50 starc. 75 d. 100 PIY 4) P 1 Si ai Jsriw ZY-XE)9 bns (,0M lemon bisbnela s et S A8.0 noilee 8 Use the following information for the next 4 questions. For 0 < a < b = 3a, suppose two random variables X ~ uniform[a, b] and Y ~ N(a, b-). From these two random variables, we can define the following new random variable W = X+ Y where E(W) = 6 and Var(W) = a. Question 6.59. Which of the following is true?s iol tiollermoini pniwollot eri pnieu a. E(X) > E(W) b. E(Y) > E(X) c. Cov(X, Y) <0v mobaBi wan owl eniteb a'lel.()M-Y e19rlw bns d. Cov(X, Y) > 0 eeldshsv mobnsi Inebnegebni nS s1s 1er leri eeogqua Question 6.60. What is SD(W)? а. 1 b. 2 с. 3 Sn ai JerW 8.3 noiteeuO d. 4 Question 6.61. Let's Z be a standard normal random variable N(0,1). What is k satisfying P(Y< k) = P(Z < 1.5)? lons а. 9 b. 10 q 30 4 el JerW ae.8 noteeu С. 11 0.s d. 12 Question 6.62. What is Var(3X)? a. 8 b. 12 с. 16 d. 20 ON OT b
Expert Solution
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Since you have posted multiple questions, we will solve the first complete question for you. Please repost the remaining questions separately. 

 

The solution for Question 6.59 can be found below.

 

Given information:

X~Uniforma,bY~Normala,b20<a<b=3aW=X+YE(W)=6Var(W)=a2

 

Then, the following results can be used:

E(X)=a+b2E(Y)=aVar(X)=(b-a)212Var(Y)=b2

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