You ride the subway 45 times per month. Find your monthly cost without purchasing a monthly pass. Then determine whether you should buy the monthly pass.

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An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e. g. 98.7654). x f(x) 0 1 2 3

Graph y = -|x| + 2. click on the graph until the correct one appears.