The Probability of an Economic Decline in the Year 2008 $\cup$

question 73

Essay

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 $\cup$ R).

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Definitions:

Energy

The capacity to do work, which in biological systems is derived from the chemical energy stored in foods or from sunlight in photosynthetic organisms.

Muscles

Tissues in the body that can contract, enabling movement and support of bodily functions.

Capillaries

Small, thin-walled blood vessels that connect arteries and veins, where oxygen, nutrients, and wastes are exchanged between the blood and tissues.

Oxygen-Deficient Blood

Blood that carries less oxygen than normal, often as a result of respiratory or circulatory problems.