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- An ordinary die is rolled. Find the probability of each event. Rolling a number greater than 1 but less than 6A certain disease has an incidence rate of 0.1%. If the false negative rate is 6% and the false positive rate is 2%, compute the probability that a person who tests positive actually has the disease. Give your answer accurate to at least 3 decimal placesThe number of work accidents that occur per week in a mine follows Poisson's law so that the probability of 2 accidents occurring is equal to 3/2 of the probability of an accident occurring. Calculate the probability that the time for the first accident to occur is one week.