Lifetime of certain device is ~distributed random t-lop variable 1/lambda. =10. the system consists of6 devices of such type and is in working condition if all of its components are in working condition. you buy for the system devices that were already used for 4 years find the probability that system that it will not fail in the next 5 years?

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

Wrote and expression for the difference of p and 4

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?