What is the area of the real object that the scale drawing models? Scale factor 1:3

A.120 square cm
B.180 square cm
C.60 square cm
D.20 square cm​

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