The number of points scored by the Bears, Eagles, and Gowboys last weekend
was three consecutive odd numbers.
The Bears scored the least number of
points and the Gowboys scored the most.
If the product of the points scored by
the Bears and Cowboys was 37 more
than the 8 times the sum of the points
scored by the Eagles and Cowboys, how
many points did the Eagles score?
A) 13 points courthouse
B) 15 points ice cream stand
C) 17 points nail salon
D) 19 points water park
E) 21 points
train station
Wong CL 2018

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?