You have a polygraph test that has a hit rate of 0.95 and a false alarm rate of 0.05. In other words, 95% of the time people who are actually lying are determined to be lying, and 5% of the time people who are actually telling the truth are erroneously determined to be lying. If you test 500 people who are lying and 100 people who are telling the truth, how many people will you say are lying

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hope this !

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

da freeck kinda math is this just drop out

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