Astudent drew the following line as their line of best fit in our desmos activity from today. do you think this student drew the line of best fit for the data represented by green dots? why or why not? what makes a good line of best fit? use 3-4 complete sentences to explain your thoughts below.

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

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1