Essay
The probability of an economic decline in the year 2013 is 0.23. There is a probability of 0.64 that we will elect a republican president in the year 2012. 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 electing a Republican president in 2012 and an economic decline in the year 2013?
c.If we experience an economic decline in the year 2013, what is the probability that a Republican president will have been elected in the year 2012?
d.What is the probability of economic decline in 2013 or a Republican president elected in the year 2012 or both?
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a.No, because P(D) 
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