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Question: Sometimes information about conditional probabilities is given to us indirectly in the statement of a problem, and we have to derive information about other probabilities or conditional probabilities. Here is such an example. If a student knows 80% of the material in a course, what do you expect her grade to be on a (wellbalanced) 100 question short-answer test about the course? What is the probability that she answers a question correctly on a 100 question true-false test if she guesses at each question she does not know the answer to? (We assume that she knows what she knows, that is, if she thinks that she knows the answer, then she really does.) What do you expect her grade to be on a 100 question True-False test to be?
1 a paired difference experiment consists of n 18 pairs d5.7 and s2d 256. suppose you wish to detect ?dgt 0.a.
What is the seller's expected revenue in both auctions and does revenue equivalence still hold?
Do these results suggest that mammograms may be an effective screening tool to reduce breast cancer deaths?- If your conclusion is incorrect, what type of error have you committed?
If the mean number of small business failures per month is 10, what is the probability that exactly four small businesses will fail during a given month?
the theoretical probability of undesirable side effects resulting from taking grebex is 2 in 19. if 570 people take
what is the probability that the sample mean of IQ scores will not differ from the population mean by more than 2 points? (Round your answer to four decimal places.)
we have studied a new test for hepatitis c in laboratory situations. we know that if a person really has hep-c the test
Ten pairs of points yielded a correlation coefficient of 0.790. If α = 0.05, which of the following statements is correct if H0 = ρ0?
Construct a 95% Confidence Interval of the population mean of minutes exercised per week.
Based on this information, what is the upper limit for the 95 percent confidence interval estimate for the proportion of people in Chicago that listen to WJKT-1450?
What is the largest value you can use for a random start? Using the following list of the first 15 items in your population, a random start of $25,000, and a rounded sample interval of $100,000.
Find an expression for the mth moment of an Erlang random variable whose PDF is given by function. -and positive n constant b.
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