Mathematics, 20.05.2021 04:20 joelxl101
To balance a seesaw, the distance, in feet, a person is from
the fulcrum is inversely proportional to the person's weight,
in pounds. Bill, who weighs 150 pounds, is sitting 4 feet
away from the fulcrum. If Dan weighs 120 pounds, how far
from the fulcrum should he sit to balance the seesaw?
Answers: 3
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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?
Answers: 3
To balance a seesaw, the distance, in feet, a person is from
the fulcrum is inversely proportional...
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