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The frequency distribution in Table summarizes the ages of the richest 400 Americans. Suppose we randomly select one of these individuals. What is the probability that the individual is at least 50 but less than 60 years old? What is the probability that the individual is younger than 60 years old? What is the probability that the individual is at least 80 years old?
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Statistics
Suppose our experiment consists of rolling a six-sided die. Then we can define the appropriate sample space as S = {1, 2, 3, 4, 5, 6}. What is the probability that we roll a 2? What is the probability that we roll a 2 or 5? What is the probability that we roll an even number?
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Statistics
DEFINE THE COMPLEMENT RULE?
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Statistics
DEFINE THE ADDITION RULE?
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Statistics
Anthony feels that he has a 75% chance of getting an A in Statistics and a 55% chance of getting an A in Managerial Economics. He also believes he has a 40% chance of getting an A in both classes. a. What is the probability that he gets an A in at least one of these courses? b. What is the probability that he does not get an A in either of these courses?
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Statistics
DEFINE THE ADDITION RULE FOR MUTUALLY EXCLUSIVE EVENTS?
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Statistics
Samantha Greene, a college senior, contemplates her future immediately after graduation. She thinks there is a 25% chance that she will join the Peace Corps and teach English in Madagascar for the next few years. Alternatively, she believes there is a 35% chance that she will enroll in a full-time law school program in the United States. What is the probability that she joins the Peace Corps or enrolls in law school? What is the probability that she does not choose either of these options?
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Statistics
DEFINE CONDITIONAL PROBABILITY?
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Statistics
