Joslyn has decided to purchase a $19,500 car and would like to finance it for
five years. her bank has offered her a standard 7.9% apr, while the
dealership has offered her a special 5.9% apr. how much money will she
save each month by choosing financing through the dealership?
o a. $14.61
o b. $16.25
o c. $18.38
o d. $29.45

Amachine that produces a special type of transistor (a component of computers) has a 2% defective rate. the production is considered a random process where each transistor is independent of the others. (a) what is the probability that the 10th transistor produced is the first with a defect? (b) what is the probability that the machine produces no defective transistors in a batch of 100? (c) on average, how many transistors would you expect to be produced before the first with a defect? what is the standard deviation? (d) another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. on average how many transistors would you expect to be produced with this machine before the first with a defect? what is the standard deviation? (e) based on your answers to parts (c) and (d), how does increasing the probability of an event a↵ect the mean and standard deviation of the wait time until success?