Question: QUALITY CONTROL The quality-control department of Starr Communications, the manufacturer of video-game cartridges, has determined from records that 1.5% of the cartridges sold have video defects, 0.8% have audio defects, and 0.4% have both audio and video defects. What is the probability that a cartridge purchased by a customer
a. Will have a video or audio defect?
b. Will not have a video or audio defect?