Twenty people check their hats at a theater. In how many ways can their hats be...

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Twenty people check their hats at a theater. In how many wayscan their hats be returned so that
(a) no one receives his or her own hat?
(b) at least one person receives his or her own hat?
(c) exactly one person receives his or her own hat?

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GIVEN THATTwenty people check their hats at a theater In how many wayscan their hats be returned so thata no one receives his or her own hatb at least one person receives his or her own hatc See Answer

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Twenty people check their hats at a theater. In how many ways can their hats be...

80.2K

Verified Solution

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Statistics

Twenty people check their hats at a theater. In how many wayscan their hats be returned so that
(a) no one receives his or her own hat?
(b) at least one person receives his or her own hat?
(c) exactly one person receives his or her own hat?

Answer & Explanation Solved by verified expert

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Twenty people check their hats at a theater. In how many ways can their hats be...

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Twenty people check their hats at a theater. In how many wayscan their hats be returned so that(a) no one receives his or her own hat?(b) at least one person receives his or her own hat?(c) exactly one person receives his or her own hat?

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Twenty people check their hats at a theater. In how many wayscan their hats be returned so that
(a) no one receives his or her own hat?
(b) at least one person receives his or her own hat?
(c) exactly one person receives his or her own hat?