Greatest Common Factor and Least Common Multiple TRANSCRIPT
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An art supply store owner has 12 markers, 24 pens,
and 30 pencils that haven't been sold. She wants to
make identical packs of these items to sell next to
the cash register. What is the greatest number of
packs that can be made that uses all of the markers,
pens, and pencils?
6
2
12
3

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?