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Exam 5: A Survey of Probability Concepts

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Question 31

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In a management trainee program, 80% of the trainees are female, 20% male. A total of 90% of the females attended college, while 78% of the males attended college. A management trainee is selected at random. What is the probability that the person selected is a female who did attend college?

A) 0.20
B) 0.08
C) 0.25
D) 0.72

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Question 32

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The probability of rolling a 3 or 2 on a single die is an example of conditional probability.

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Question 33

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A joint probability measures the likelihood that two or more events will happen concurrently.

The complement rule states that the probability of an event not occurring is equal to one minus the probability of its occurrence.

When applying the special rule of addition for mutually exclusive events, the joint probability is _______.

A graphical method used to calculate joint and conditional probabilities is __________.

In a tree diagram that illustrates the joint probabilities for a probability problem, the sum of all the joint probabilities must equal _______________.

A company set up a kiosk in the Mall of America for several hours and asked randomly selected people which color cell phone cover was their favorite. The results follow: What is the probability that black or orange are the favorite colors?

A company set up a kiosk in the Mall of America for several hours and asked randomly selected people which color cell phone cover was their favorite. The results follow: What is the probability that black is the favorite color, given that the person's age is 21 or older?

What is the difference between a permutation and a combination?

A student organization of 10 wants to select a president, a vice-president, and a treasurer. How many different leadership assignments are possible?

A new computer game has been developed and 80 veteran game players will test its market potential. If 60 players liked the game, the probability that any veteran game player will like the new computer game is ______.

The joint probability of two independent events, A and B, is computed as P(A and B) = P(A) P(B).

A study of interior designers' opinions with respect to the most desirable primary color for executive offices showed that: What is the probability that a designer does not prefer blue?

When the special rule of addition is used, the events must be _______________.

The joint probability of two events that are not independent, P(A and B), is computed as _______________.

When an event's probability depends on the likelihood of another event, the probability is a(n) ___________.

In a survey of employee satisfaction, the following table summarizes the results in terms of employee satisfaction and gender. What is the probability that an employee is satisfied, given that the employee is male?

In flipping a fair coin, what is the probability of either heads or tails on one toss?

When are two experimental outcomes mutually exclusive?