Question 1

If A and B are independent events with P(A) = 0.60 and P(B) = 0.70,then the probability that A occurs or B occurs or both occur is:

Accepted Answer

A)  1.30
B)  0.88
C)  0.42
D)  0.10E) None of the above
F) A) and D)

Question 2

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Three airlines serve a small town in Indiana.Airline A has 60% of all the scheduled flights,airline B has 30%,and airline C has the remaining 10%.Their on-time rates are 80%,60%,and 49% respectively.Define event D as an airline arrives on time.
-Calculate P(B ∩D).

Accepted Answer

P(B ∩ D)= ...

Question 3

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
In a survey of top executives,it was found that 46% had either traveled internationally on business or could fluently speak a foreign language.The probability that an executive who had not traveled internationally could speak a foreign language was 10%.It was found that only 4% of the executives had traveled internationally and could speak a foreign language.
-What is the probability that an executive who speaks a foreign language fluently has traveled internationally?

Accepted Answer

T = Traveled internationally
S = Speaks ...

Question 4

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
The production manager at a local manufacturing plant is concerned about work stoppages in the four production lines.In particular,the manager is evaluating the likelihood of the next stoppage occurring on production line 1.
-Based on previous stoppage records,the manager figures that the probability that production line 1 is stopped next is 25%.This is an example of:

Accepted Answer

A)  subjective probability.
B)  classical probability.
C)  relative frequency probability.
D)  Bayesian probability.E) B) and C)
F) A) and B)

Question 5

Which of the following is an example of a random experiment?

Accepted Answer

A)  A customer inspects a delivery and finds an error.
B)  Marketing budgets a 10% increase in advertising.
C)  The post office misplaces a letter.
D)  A student increases her average study time/week and improves her grades.E) B) and C)
F) A) and D)

Exam 3: Probability

Correct Answer
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T = Traveled internationally
S = Speaks ...
View Answer

If A and B are independent events with P(A) = 0.60 and P(B) = 0.70,then the probability that A occurs or B occurs or both occur is:

Correct Answer
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Which of the following is an example of a random experiment?

Correct Answer
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Correct Answer
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Correct Answer
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P(B ∩ D)= ...
View Answer

Exam 3: Probability

Correct AnswerverifiedT = Traveled internationallyS = Speaks ...View AnswerShow Answer

If A and B are independent events with P(A) = 0.60 and P(B) = 0.70,then the probability that A occurs or B occurs or both occur is:

Correct AnswerverifiedShow Answer

Which of the following is an example of a random experiment?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct AnswerverifiedP(B ∩ D)= ...View AnswerShow Answer

Correct Answer
verified
T = Traveled internationally
S = Speaks ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
P(B ∩ D)= ...
View Answer