ABCD is a parallelogram. The diagonals of ABCD intersect at O.
OA = a and OB = b
b
b
a) Express the vector CÁ in terms of a.
a
A
D
b) Express the vector AB in terms of a and b.
c) Express the vector BC in terms of a and b.

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