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P(X>45)=.1200
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A box contains 4 bolts. Two of them, labeled #1 and #2, are 5 mm in diameter, and two of them, labeled #3 and #4, are 7 mm in diameter. Bolts are randomly selected until a 5 mm bolt is obtained. The outcomes are the sequences of bolts that can be selected. So one outcome is 1, and the other...
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c.For the population of women whose mothers took the drug DES during pregnancy, a sample of 3980 women showed 63 developed tissue abnormalities that might lead to cancer. Provide a descriptive statistic (to 1 decimal) that could be used to estimate the number of women out of 1000 in this...
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Enter the equation for position as a function of time. Before submitting your answer, check that it is consistent with the qualities of the graph that you have identified. For instance, if you increase in the equation, would it move the graph upward? Express your answer in terms of time ,...
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Last year, at Northern Manufacturing Company, 200 people had colds during the year. One hundred fifty five people who did no excercising had colds, and the remainder of the people with colds were involved in a weekly exercise program. Half of the 1000 emloyees were involved in some type of...
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The American Veterinary Association claims that the annual cost of medical care for dogs averages $100 with a standard deviation of $30, and for cats averages $120, with a standard deviation of $35. Let X= annual medical cost for a dog and Y= annual medical cost for a cat. Suppose that X and Y...
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cases where the expected probability do not agree with the empirical values based on relative frequency
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In a research study, it is always preferable for the researcher to choose his participants as carefully as possible rather than randomly accept samples.
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an airline company has a policy of booking as many as 16 passengers on an airplane that can only seat 15. A study has shown that only 94 percent of the booked passengers actually show up for the flight. Find the probability that if the airline books 16 persons, not enough seats will be available.
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This data shows the final exam scores of 10 randomly selected students and the number of hours they studied for an exam. (hours, scores) (3, 65), (5, 80), (2, 60), (8, 88), (2, 66), (4, 78), (4, 85), (5, 90), (6, 80), (3, 71)
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