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Author Question: The probability of an economic decline in the year 2008 is 0.23 . There is a probability of 0.64 ... (Read 120 times)

jrubin

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on: Jun 24, 2018
The probability of an economic decline in the year 2008 is 0.23 . There is a probability of 0.64 that we will elect a republican president in the year 2008 . If we elect a republican president, there is a 0.35 probability of an economic decline. Let D represent the event of an economic decline, and R represent the event of election of a Republican president.
 a. Are R and D independent events?
  b. What is the probability of a Republican president and economic decline in the year 2008?
  c. If we experience an economic decline in the year 2008, what is the probability that there will a Republican president?
  d. What is the probability of economic decline or a Republican president in the year 2008? Hint: You want to find P(D  R).

Question 2

A requirement that two 0-1 variables both be either in or out of a solution together is a
 a. k out of n alternatives constraint
  b. conditional constraint
 c. mutually exclusive constraint
 d. corequisite constraint


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joshbk44

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Reply #1 on: Jun 24, 2018
Answer to Question 1

a. No, because P(D)  P(D  R)
b. 0.224
c. 0.9739
d. 0.646

Answer to Question 2

d


jrubin

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Reply 2 on: Jun 24, 2018
Excellent

aliotak

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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