Which polynomial lists the powers in descending order?
O A. x2 - 4x + 2x + 4x3 - 10
O B. 4x2 - 4x5 + 2x + x? - 10
O C. -10 + 4x2 - 4x5 + 2x1 + x?
O D. x? + 4x2 + 2x4 - 435 - 10

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?