TV Choices TV Guide surveyed 510 subscribers asking which of the following three crime investigation shows they watched on a regular basis: CSI:Crime Scene Investigation, CSI:Miami, and CSI:NY. The results of the 510 questionnaires that were returned showed that • 175 watched CSI:NY. • 227 watched CSI:Miami. • 285 watched CSI:Crime Scene Investigation. • 100 watched CSI:NY and CSI:Miami • 96 watched CSI:NY and CSI:Crime Scene Investigation. • 87 watched CSI:Miami and CSI: Crime Scene Investigation. • 59 watched all three shows. Construct a Venn diagram and determine how many pe
people • a) watched only CSI:NY. • b) watched exactly one of these shows. • c) watched CSI:Miami and CSI:Crime Scene Investigation, but not CSI:NY. • d) watched CSI:NY or CSI: Crime Scene Investigation, but not CSI:Miami. • e) watched exactly two of these shows.
The keypoint is begining from inner to the outer. First begin 59, then calculate 87,96,100 and then 175,227,285... 47 of 510 subscribers don't watch any of these three regularly. *
I is right :)
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