OpenStudy (anonymous):
This is a Proportion questin in Statistics At a factory that produces pistons for cars, Machine 1 produced satisfactory pistons and unsatisfactory pistons today. Machine 2 produced satisfactory pistons and unsatisfactory pistons today. Suppose that one piston from Machine 1 and one piston from Machine 2 are chosen at random from today's batch. What is the probability that the piston chosen from Machine 1 is unsatisfactory and the piston chosen from Machine 2 is satisfactory ?
hero (hero):
@jackpierce, the problem you posted doesn't mention how many satisfactory and unsatisfactory pistons were produced today. That essential information is needed in order to be able to help you with the problem.
OpenStudy (anonymous):
Machine 1 produced 414 pistons and 276 unsatisfactorly, machine 2 480 and 120 unsatisfactorily thank you
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