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7-91.

A technology group wants to determine if bringing a laptop on a flight is associated with being on a business trip. Data for random passengers at an airport was collected and summarized in the table below.

 Laptop 

 No laptop 

Traveling for business

Not traveling for business 

  1. What is the probability of a passenger bringing a laptop on a flight if the passenger is traveling for business?

    How many total people are traveling for business? How many of those people are traveling with a laptop?

  1. Does it appear that there is an association between bringing a laptop on a flight and traveling for business?

    so they are associated.