Smart Phones. A survey in a certain city revealed that people have smart phones of three major companies, Apple, HTC and Nokia. Circulation information indicates that 56.0% of people have Apple smartphones, 24.6% have HTC, 29.4% have Nokia, 5.9%

have both Apple and Nokia, 9.8% have both Apple and HTC, 2.4%

have both HTC and Nokia, and 0.8% have all three. If a person in this city is selected at random, determine the probability that he has a smartphone of least one of the three major companies.