I have 2 math questions, i need help asap!? - Freemason Hirams Travels Masonic Forums

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03-20-2008, 11:41 PM

Amber L

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I have 2 math questions, i need help asap!?

the 1st problem is:

2.The Hemingway Financial Company prepares tax returns for individuals. According to the IRS, people making between 25k and 50k are audited at a rate of 1%. Three of five customers of Hemingway Financial making between 25k and 50k were audited by the IRS.
a.Find the probability that among 5 people making between 25k and 50k that exactly 3 are audited by the IRS.
b.Find the probability that at least 3 are audited.
c.Are Hemingway Financial’s customers being targeted by the IRS or are they just unlucky, or are they being targeted for audits?

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