All airline passengers must pass through security screenings, but some are subjected to additional searches as well. Some travelers who carry laptops wonder if that makes them more likely to be searched. Data for 240 passengers aboard a cross-country flight are summarized in the table shown. Does it appear that being subject to an additional search is independent of carrying a laptop computer? Explain. Searched? Yes No Laptop No laptop 80 84 164 20 56 76 Total 100 140 240

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