ISYE 6644 OAN Week 3 Module 2 (L10-16) Knowledge Checks (Fall/Spring) Questions With Correct Solutions, Already Passed!!

Week 3 Module 2 (L10-16) Knowledge Checks (Fall/Spring)
Due No due date
Points 15
Questions 15
Time Limit None
Allowed Attempts Unlimited

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Attempt History
Attempt Time Score

LATEST Attempt 1 120 minutes 14 out of 15

Submitted Feb 22 at 5:17pm
Correct answer
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Question 1
pts

Module 2 Lesson 10



The following table gives the joint p.m.f. of two random variables (the GPA of a University of Georgia
student) and (his IQ).




What's the conditional probability that a random UGA student has an IQ of 50 given that his GPA = 2?

a.
b.
We want



c.
d.

We want



Correct answer

,
Question 2
pts

Module 2 Lesson 10


Which are legitimate expressions for ? (There may be more than one correct answer.)

a.
b.
(b) and (d). (b) Follows by definition, and (d) follows since .
c.

d.

(b) and (d). (b) Follows by definition, and (d) follows since .
Correct answer
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Question 3
pts

Module 2 Lesson 1

If and both have mean and variance , and , find the correlation between and .

a.
b.
c.
d.




Correct answer
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Question 4
pts

Module 2 Lesson 11


If and both have mean and variance , and , find

a.
b.
c.