Mathematics, 18.07.2019 02:00 tina5513
Toilet rolls com in packs of 4 and 9 the 4 pack is priced at £2.04 the 9 pack is priced at £4.68 by calculating the price per roll determine which pack is the better value
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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?
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Toilet rolls com in packs of 4 and 9 the 4 pack is priced at £2.04 the 9 pack is priced at £4.68 by...
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