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The state consumers affairs office provided the following information on the frequency of automobile repairs for cars 2 years old or older: 20% of all cars will require repairs once during a given year, 10% will require repairs twice, and 5% will require three or more repairs during the year.
a. What is the probability that a randomly selected car will need no repairs?
b. What is the probability that a randomly selected car will need at most one repair?
c. What is the probability that a randomly selected car will need some repairs?
consider the following statement each culture has its own norms of etiquette. in a diverse society like america as well
If level of significance ( α ) is 0.005 in two-tail test, how large is non rejection region under curve of the t distribution?
Find the distribution of the test statistic when the null hypothesis is true, and then show how to get a test size alpha= 0.10
Finds the standard deviation of the time to prepare, copy and mail their tax return is 80 minutes. What is the standard error of the mean in this example?
Office Visits what is the age distribution of patients who make office visits to a doctor or nurse?
due to limited capacity only 200 of these can be made each month on regular time and the cost is 300 each. however an
event a occurs with probability 0.1 and event b occurs with probability 0.5.a what is the maximum probability that the
Gailey, Inc., incorporated in 1980, removed asbestos and mechanical insulation on contract jobs that required union labor. Richard Gailey had been the president, con- trolling shareholder, and director of Gailey, Inc. from its inception.
What percentage of architects have Z scores (a) above .10, (b) below .10, (c) above .20, (d) below .20, (e) above 1.10, (f) below 1.10, (g) above -.10, (h) below -.10?
The mean time required to complete a certain type of construction project is 52 weeks with a standard deviation of 3 weeks. Answer questions 4-7 using the preceding information and modeling this situation as a normal distribution.
a biologist wishes to estimate the effect of an antibiotic on the growth of a particular bacterium by examining the
Suppose that a car rental agency offers insurance for a week that will cost $10 per day. A minor fender bender will cost $1,200 while a major accident might cost 10,000.
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