For certain personal tax returns, the IRS will compute the amount to refund a taxpayer. Suppose the

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For certain personal tax returns, the IRS will compute the amount to refund a taxpayer. Suppose the Chicago office of the IRS processes an average of three returns per hour that require a refund calculation.
a. What probability distribution applies to this situation?
b. What is the probability that the IRS processes exactly three refunds in a particular hour that requires a refund calculation?
c. What is the probability the IRS does not compute a refund on any return in an hour?
d. What is the probability the IRS processes at least one return in a particular hour that requires a refund calculation
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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