The time at which the mailman delivers the mail follows a normal distribution with a mean of 2:00PM and a standard deviation of 15 minutes (20 pts) a) What is the probability that the mail will arrive before 1:50PM? b) What is the probability that the mail will arrive after 2:30PM? c) What is the probability that the mail will arrive between 1:40PM and 2:20PM? d) Between what two times (equally before the mean and equally after the mean) accounts for the mail being delivered
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Find the probability of the event from a random sample of 10 students who are physics majors. 47) Exactly 2 belong to an ethnic minority. Answer: .1990 47) Find the probability of the event. 48) A die is rolled 18 times and two threes come up. Answer: .230 48) Solve the problem involving probabilities with independent events. 49) A spinner is used for which it is equally probable that the pointer will
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analysis by using your knowledge of probability and conditional probability to help with the ranking of each of the judges‚ as well as each court. Managerial Report Prepare a report (see below) with your ranking of the judges based on the probabilities and conditional probabilities‚ as well as the analysis of each court. Include the following seven (7) items in table format to support your ranking. Be sure to use five (5) decimal places for your probabilities in the table‚ as some of them will be
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Exam 3 Study Guide Math 219 1. The probability that a randomly selected patient who visits the emergency room will die within 1 year of the visit is 0.05. (binomial probability distribution) a) What is the probability that exactly 1 of 10 randomly selected visitors to the ER will die within 1 year? b) What is the probability that fewer than 2 of 25 randomly selected visitors to the ER will die within 1 year? c) What is the probability that at least 2 of 25 randomly selected visitors
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figure that determines probability of having more than the amount desired to five. This then gave me the probability of having more than the desired amount of trucks in the system. This process was repeated for the six and seven truck models. Another calculation determined was the highest number of trucks in the system with a 95% probability. The highest number amounted to 15 trucks. This figure was determined by simply changing the cell that corresponded to probability of less in the system. Through
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Week 11 (i) SAMPLE DESIGN AND SAMPLING PROCESS Introduction Samples are parts or potions of population. A population is the specified total of study elements. A target population‚ also known as the universe‚ includes all the members of a real or hypothetical set of people‚ event or objects to which we wish to generalize the results of our research. A study population is that aggregation of elements from which the sample is actually selected. Sampling means selecting a given
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N(1000‚ 180) Find the probability of weekly sales exceeding 850 tickets. Find the probability of the interval 1000 to 1200 Take 5 weeks at random. Find the probability of weekly sales not exceeding 850 tickets in more than two weeks Ticket price is 4.5 Euros. Define the distribution of weekly revenue Problem 35 (a) Random variable X : weekly ticket sales (units) of a museum. X ∼ N(1000‚ 180) Find the probability of weekly sales exceeding 850 tickets. Find the probability of the interval 1000
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sensitivity analysis and analysis of other alternatives faced by Bio-Imaging and Medtech (a related company). The Need for a Systematic Theory of Probability • Discussion on the "Suds-Away" dishwashing detergent example‚ which introduces the need for probability theory to properly assign probabilities to branches at event nodes (conditional probabilities). • The solution to this example is postponed to Chapter 2. Further Issues and Concluding Remarks On Decision Analysis • Discussion on the following
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6 24 $20 - $100 15 25 10 50 Over $100 5 15 6 26 Total 30 48 22 100 a) Find the probability that the amount paid is < $20 Answer: P(<$20) = b) Find the probability that the method of payment is credit Answer: P(Credit) = c) Find the probability that the amount is <$20 and the method of payment is credit? Answer: P(<$20) = d) Find the probability that the amount is <$20 or the method of payment is credit Answer:
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the population to represent the whole population. Probability sampling‚ or random sampling‚ is a sampling technique in which the probability of getting any particular sample may be calculated. Nonprobability sampling does not meet this criterion and should be used with caution. Nonprobability sampling techniques cannot be used to infer from the sample to the general population. The advantage of nonprobability sampling is its lower cost compared to probability sampling. However‚ one can say much less on
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