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A miner has been trapped in a mine with three doors. One takes him to freedom after one hour, one brings him back to the mine after 3 hours and the third one brings him back after 5 hours. Suppose that he wishes to get out of the mine and that he does so by choosing one of the three doors uniformly at random and continues to do so until he is free. Find the generating function, the mean and the variance for the time it takes him to reach freedom.
A certain laboratory animal used in preclinical evaluations of experimental catheters gives birth to only one offspring at a time. The probability of giving birth to a male or a female offspring is equally likely. In three consecutive pregnancies ..
Jerry however is unsure the 0.6 probability of a favorable marketing research study is correct. How sensitive is Jerry's decision to this probability value ? How far can this probability value deviate from 0.6 without causing Jerry to change his d..
Explain the process of factoring a trinomial with a leading coefficient that is not equal to one. Why is this process more difficult than when the leading coefficient is equal to one? Give an example. How could we apply FOIL in this context?
In the Big Ten (the NCAA sports league) a sample showed that only 267 out of 584 freshmen football players graduated within 6 years. (a) At (alpha) a = .05
You need to estimate the mean number of travel days per year for outside salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 42 days.
instructionsyour comments should add significantly to the discussion by suggesting alternative solutions pointing out
Testing for Population mean - Can the difference in average educational level between the sample and the nation be explained by chance variation?
question the average annual total return for u.s. diversified equity mutual funds from 1999 to 2003 was 4.1
consider two urns. the first contains two white and seven black balls and the second contains five white and six black
Pearson correlation coefficient was 0.61.a. Was the correlation coefficient significantlydifferent from zero? Use α = 0.05.b. Predict the torque for a current equal to 50 mA.
what is the difference between the goodness-of-fit test for equal expected frequencies and unequal expected
Construct a probability distribution table. (b) if p=0.4, find the expected net profit. (c) what is the smallest value of P for which the owner will take the risk to undertake this project?
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