The chance of an IRS audit for a tax return with over $25,000 in income is about 2% per year.Suppose that 100 people with tax returns over $25,000 are randomly picked.We are interested in the number of people audited in one year.Use a Poisson distribution to answer the questions.a) How many people are expected to be audited?Enter an exact number as an integer,fraction or decimal.b) Find the probability that no one was audited.( Round your answer to four decimal places)c)Find thebprobability that at least four were audited.(Round your answer to four decimal places)
The chance of an IRS audit for a tax return with over $25,000 in income is about 2% per year.Suppose that 100 people with tax returns over $25,000 are randomly picked.We are interested in the number of people audited in one year.Use a Poisson distribution to answer the questions.a) How many people are expected to be audited?Enter an exact number as an integer,fraction or decimal.b) Find the probability that no one was audited.( Round your answer to four decimal places)c)Find thebprobability that at least four were audited.(Round your answer to four decimal places)
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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The chance of an IRS audit for a tax return with over $25,000 in income is about 2% per year.Suppose that 100 people with tax returns over $25,000 are randomly picked.We are interested in the number of people audited in one year.Use a Poisson distribution to answer the questions.a) How many people are expected to be audited?Enter an exact number as an integer,fraction or decimal.b) Find the probability that no one was audited.( Round your answer to four decimal places)c)Find thebprobability that at least four were audited.(Round your answer to four decimal places)
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