Please help me answer this with the correct answer :) Explain your answer

I will give braisnlt :)

What is the y intercept of f(x)=(1/2)^x?

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

Which of the following is the true for f(x) = 5cos