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Automobile inspection
Twenty percent of cars that are inspected have faulty pollution control systems. The cost of repairing a pollution control system exceeds $100 about 40% of the time. When a driver takes her car in for inspection, what's the probability that she will end up paying more than $100 to repair the pollution control system?
Botanist is testing three plants and finds that prob of plant A being alive in a weak is 0.3 plant B is 0.6 and plant C 0.5 these probability are indipendant of each other. Determine the probability of all plants being alive after a weak.
Use any method to decide whether to rejects or fail to reject the null hypothesis. Then interpret the decision in the context of the original claim.
A sample of 9 customers is selected. What is the probability that exactly 2 customers in the sample will default on their payments?
what is a 99 confidence interval on our estimate of mean if our sample of 40 observations with a sample standard
manufacture of a certain component requires three different machining operations. machining time for each operation has
Compare the mean absolute error, root mean square error, and the mean absolute percent of error for all four of these forecasting techniques - what do these statistics tell you about the forecasts? Which one is the best forecast and why?
To determine whether there exists mean difference among the groups:
Compute the probability of selecting a credit card customer at random and finding the customer charged between $70 and $83 last month.
advertisements for an instructional video claim that the techniques will improve the ability of little league pitchers
Assume that causes of heart failure between individuals are independent. What is the probability that three individuals have conditions caused by outside factors?
A random samle of 12 college freshmen is obtained. The probability that exactly two of the 12 freshmen will not return for their sophmore year is?
an effective way to catch salmon commercially is by gill netting. traditionally gill netters hang long monofilament
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