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Question 1

10 points

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The probability that Stephen Curry scores given that James Harden is guarding him is 45%. The probability that Harden is guarding Curry is 20%. What is the probability that Curry scores and Harden is guarding him?

25%

O 44%

O 9%

O 65%

O 45%

A Moving to another question will save this response.

Question 1 of 11

Question 2

10 points

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You assign the following subjective probabilities to the amount of points you are going to get on the econometrics exam:

Grade

Probability

100

0.15

95

0.20

90

0.15

85

0.40

80

0.10

What is the expected value of your grade?

O 100.0

0 90.0

90.5

O 85.0

89.5

Question 3

10 points

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Suppose Y is distributed N(2,16). What is the Pr(Y> 5)?

O 0.575

O 0.227

O 0.425

O 0.773

O 0.750

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Question 3 of 11 > >>

Question 4

10 points

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If var(Y) = 1, then what is the var( 4Y+3)?

019

O 12

0 1

O 7

O 16

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Explanation & Answer:

8 Questions

Tags:

ramdom variables

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