Is 7/8 bigger than one or greater or equal to one

Which matrix can be multiplied to the left of a vector matrix to get a new vector matrix ?

In the diagram of circle a what is m

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