Im having a really hard time trying to figure out what numbers to use where to answer this: When an opinion poll calls residential telephone…
Im having a really hard time trying to figure out what numbers to use where to answer this:
When an opinion poll calls residential telephone numbers at random, only 20% of the calls reach a live person. you watch the random dialing machine make 15calls.a) what is the probability that exactly 3 calls reach a person?
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