Milo wants to roll epoxy on his garage floor. In order to do this he needs to know the area of his rectangular-shaped garage. The measurements are 20+ v3 feet by 20+v3 feet.
What is the area of his garage floor? (Remember, the formula for area of a rectangle is A = lw.)
403 +40v3 ft?
400 + 4273 112
400 + 40V5 ft?
O 403 + 2075 12

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?