Mrs. Daniel packs reams of paper into boxes. The box has a mass of 18 ounces, and each ream of paper weighs 22 ounces. If the function
y = 22x + 18 describes the total mass, the variable x represents the —
A. total mass of a box filled with reams of paper
B. total number of boxes filled with reams of paper
C. mass of each ream of paper inside a box
D. number of reams of paper packed in a box

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