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According to the IRS, the chance of your tax return being audited is 20%. Suppose 6 taxpayers are selected randomly. What is the probability that

According to the IRS, the chance of your tax return being audited is 20%. Suppose 6 taxpayers are selected randomly.

What is the probability that exactly one taxpayer will be audited?
What is the probability that more than one taxpayer will be audited?
What is the probability that at most one taxpayer will be selected?
Find the mean and standard deviation.
What assumptions did you have to make in order to answer the above questions [Parts (a) through (d)]?

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