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In an assembly-line production of industrial robots, gearbox assemblies can be installed in one minute each if holes have been properly drilled in the boxes and in ten minutes if the holes must be redrilled. Twenty gearboxes are in stock, 2 with improperly drilled holes. Five gearboxes must be selected from the 20 that are available for installation in the next five robots. a Find the probability that all 5 gearboxes will fit properly. b Find the mean, variance, and standard deviation of the time it takes to install these 5 gearboxes.
The remaining 5 were not given the overview. Here are the scores for students in each group:
An error of .01 in the computation of the short interest rate, approximately what error do you expect to make in the computation of the value of the portfolio?
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ten observations were selected from each of 3 populations and an analysis of variance was performed on the data. the
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