Question

At the beginning of each year, the Internal Revenue Service (IRS) releases information on the likelihood of a tax return being audited. In 2015, the IRS audited 1,228,117 individual tax returns from the total of 146,861,217 filed returns; also, the IRS audited 24,761 returns from the total of 1,915,337 corporation returns filed (IRS 2015 Data Book). Round all answers to four decimal places. Suppose an individual tax return from 2015 is randomly selected. What is the probability that the return was audited by the IRS? Refer to part a. Determine the probability that an individual return was not audited by the IRS. Suppose a corporation tax return from 2015 is randomly selected. What is the probability that the return was audited by the IRS? Refer to part c. Determine the probability that a corporation return was not audited by the IRS. 

          At the beginning of each year, the Internal Revenue Service
(IRS) releases information on the likelihood of a tax return being
audited. In 2015, the IRS audited 1,228,117 individual tax
returns from the total of 146,861,217 filed returns; also, the IRS
audited 24,761 returns from the total of 1,915,337 corporation
returns filed (IRS 2015 Data Book).  Round all answers to four
decimal places.
Suppose an individual tax return from 2015 is randomly
selected. What is the probability that the return was audited by
the IRS?
Refer to part a. Determine the probability that an individual
return was not audited by the IRS.
Suppose a corporation tax return from 2015 is randomly
selected. What is the probability that the return was audited by
the IRS?
Refer to part c. Determine the probability that a corporation
return was not audited by the IRS.
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Added by Matthew B.

Elementary Statistics a Step by Step Approach
Elementary Statistics a Step by Step Approach
Allan G. Bluman 9th Edition
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At the beginning of each year, the Internal Revenue Service (IRS) releases information on the likelihood of a tax return being audited. In 2015, the IRS audited 1,228,117 individual tax returns from the total of 146,861,217 filed returns; also, the IRS audited 24,761 returns from the total of 1,915,337 corporation returns filed (IRS 2015 Data Book). Round all answers to four decimal places. Suppose an individual tax return from 2015 is randomly selected. What is the probability that the return was audited by the IRS? Refer to part a. Determine the probability that an individual return was not audited by the IRS. Suppose a corporation tax return from 2015 is randomly selected. What is the probability that the return was audited by the IRS? Refer to part c. Determine the probability that a corporation return was not audited by the IRS.
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Transcript

-
00:01 At the beginning of the year, so we have individuals and corporations.
00:06 I'm going to just organize myself a little bit.
00:08 At the beginning of each year, the irs releases information on the likelihood of tax returns being audited.
00:12 And in 2015, they audited 1 ,228 ,117 individual tax returns.
00:21 So that's not our sample size.
00:23 That's our actual audited.
00:26 So 1 ,228 ,117.
00:30 Which seems like a lot, but there was a total of 146 ,861 ,217 filed returns...
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