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A rapid test for the presence in the blood of antibodies to HIV, the virus that causes AIDS, gives a positive result with probability about 0.004 when a person who is free of HIV antibodies is tested. A clinic tests 1000 people who are all free of HIV antibodies.
(a) What is the distribution of the number of positive tests?
(b) What is the mean number of positive tests?
(c) You cannot safely use the Normal approximation for this distribution. Explain why.
estimating the simple aggregate price index.betts electronics purchases three replacement parts for robotic machines
a. give at least two important uses of the moment generating function mgf of an rv.b. could mt 12 e-2t 25 e-t - 25 be
If a random student is chosen what is the probability that he or she scores less than 59? What score indicates that the student has to retake the exam?
a popular retail store knows that the purchase amounts by its customers is a random variable that follows a normal
Assume that Los Arboles had a special program in place to encourage helmet use. Elucidate to what extent did removal of the outlier improve the fit.
How many, if 2 of the men refuse to serve together? = 56 (c): How many, if 2 of the women refuse to serve together? = 50 (d): How many, if 1 man and 1 woman refuse to serve together?
a nascar team goes on tour for six moths. one major piece of equipment for the car is subject to breakdowns cause by
a popular flashlight that uses two d-size batteries was selected and several of the same models were purchased to test
Solve following for x, expressing answers as compound fractions and integers where appropriate:
Selected data for the company's operations last year follow (all currency values are in thousands of rupiahs):Assume that the company uses absorption costing. Compute the unit product cost for 1 gamelan.
1.a restaurant monitors its customers complaints. here are the percent of customers with the following complaintswith
before bidding on a contract a contractor wants to be 90 confident that he is in error by less than 20 minutes in
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