Exam 11: Probability and Statistics
Exam 1: Management Science121 Questions
Exam 2: Linear Programming: Model Formulation and Graphical Solution122 Questions
Exam 3: Linear Programming: Computer Solution and Sensitivity Analysis95 Questions
Exam 4: Linear Programming: Modeling Examples90 Questions
Exam 5: Integer Programming107 Questions
Exam 6: Transportation, Transshipment, and Assignment Problems98 Questions
Exam 7: Network Flow Models104 Questions
Exam 8: Project Management116 Questions
Exam 9: Multicriteria Decision Making103 Questions
Exam 10: Nonlinear Programming72 Questions
Exam 11: Probability and Statistics152 Questions
Exam 12: Decision Analysis122 Questions
Exam 13: Queuing Analysis123 Questions
Exam 14: Simulation100 Questions
Exam 15: Forecasting133 Questions
Exam 16: Inventory Management157 Questions
Exam 17: the Simplex Solution Method90 Questions
Exam 18: Transportation and Assignment Solution Methods86 Questions
Exam 19: Integer Programming: the Branch and Bound Method63 Questions
Exam 20: Nonlinear Programming: Solution Techniques55 Questions
Exam 21: Game Theory64 Questions
Exam 22: Markov Analysis64 Questions
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A ________ probability distribution indicates the probability of r successes in n trials.
(Multiple Choice)
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Probabilistic techniques assume that no uncertainty exists in model parameters.
(True/False)
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The weight of a loaf of bread is normally distributed with a mean of 22 oz and a standard deviation of 0.5 oz. What is the probability that a loaf is less than 24 oz?
(Short Answer)
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Horatio Oscar Vineeth Lane (HOV Lane for short) records his commute times for a period of one month and assigned them to five different categories as shown in the table.
Commute Length Number af Observations commute time <10 minutes 1 10\leq commute time <20 minutes 2 20\leq commute time <30 minutes 4 30\leq commute time <40 minutes 9 40\leq commute time <50 minutes 4
-What is the probability that Mr. Lane makes it home in under thirty minutes?
(Multiple Choice)
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Jim is considering pursuing an MS in Information Systems degree. He has applied to two different universities. The acceptance rate for applicants with similar qualifications is 20% for University X and 45% for University Y.
-What is the probability that Jim will be accepted by at least one of the two universities?
(Short Answer)
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The cumulative probability for all six outcomes of tossing a fair die should end with the value ________.
(Short Answer)
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A company markets educational software products and is ready to place three new products on the market. Past experience has shown that for this particular software, the chance of "success" is 80%. Assume that the probability of success is independent for each product. What is the probability that exactly 1 of the 3 products is successful?
(Multiple Choice)
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For the normal distribution, the mean plus and minus 1.96 standard deviations will include what percent of the observations?
(Multiple Choice)
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A joint probability is the probability that two or more events that are mutually exclusive can occur simultaneously.
(True/False)
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Employees of a local company are classified according to gender and job type. The following table summarizes the number of people in each job category.
Administrative (AD) 110 10 Salaried staff (SS) 30 50 Hourly staff (HS) 60 40
-If an employee is selected at random, what is the probability that the employee is male?
(Short Answer)
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The weight of a loaf of bread is normally distributed with a mean of 22 oz and a standard deviation of 0.5 oz. What is the probability that a loaf of bread is larger than 23 oz?
(Short Answer)
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Horatio Oscar Vineeth Lane (HOV Lane for short) records his commute times for a period of one month and assigned them to five different categories as shown in the table.
Commute Length Number af Observations commute time <10 minutes 1 10\leq commute time <20 minutes 2 20\leq commute time <30 minutes 4 30\leq commute time <40 minutes 9 40\leq commute time <50 minutes 4
-Which of these events are mutually exclusive?
(Multiple Choice)
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An online sweepstakes has the following payoffs and probabilities. Each person is limited to one entry.
Payoff Probability \ 1.00 0.1000 \ 5.00 0.0100 \ 10.00 0.0050 \ 100.00 0.0010 \ 1,000.00 0.0005 \ 5,000.00 0.0001
-The probability of winning at least $1000 is ________.
(Short Answer)
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Experiments with repeated independent trials will be described by the binomial distribution if
(Multiple Choice)
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________ probability is an estimate based on a personal belief, experience, and knowledge of a situation.
(Short Answer)
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The ________ normal distribution has a mean of 0 and a standard deviation of 1.
(Short Answer)
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The fact that the first toss of a coin has no effect on the outcome of the second toss of the coin suggests that these events are ________.
(Short Answer)
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The weight of a loaf of bread is normally distributed with a mean of 22 oz and a standard deviation of 0.5 oz. What is the probability that a loaf is between 21.75 and 22.25 oz?
(Short Answer)
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Relative frequency is the more widely used definition of objective probability.
(True/False)
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A fair die is rolled nine times. What is the probability that an odd number (1, 3, or 5) will occur less than 3 times?
(Multiple Choice)
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