Which number is rational and a real number, but not an integer?

A. Square root 2
B. There is no such number
C. -5
D. 5/7

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

What multiplys to be 1 but adds up to be 4

Change negative exponents to positive. then solve. round to four decimal places