Problems involving overlapping finite sets

Problems involving overlapping finite sets

In a sampling of 1,000 persons it was found that 215 took at least two of four leading magazines, 35 took all four, while 125 took none. A total of 965 copies was involved. Are these data consistent?

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Bibliographische Detailangaben
Veröffentlicht in:The Mathematics teacher 1960-11, Vol.53 (7), p.524-532
1. Verfasser: ALFRED, U.
Format: Artikel
Sprache:eng
Schlagworte:
Betting
Churches
Coal mining
Mathematical notation
Mathematical sets
Mathematics
Mathematics teachers
Numbers
Second language learning
Social studies learning
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Beschreibung
Zusammenfassung:In a sampling of 1,000 persons it was found that 215 took at least two of four leading magazines, 35 took all four, while 125 took none. A total of 965 copies was involved. Are these data consistent?
ISSN:0025-5769
2330-0582
DOI:10.5951/MT.53.7.0524