The quality-control department of Starr Communications, the manufacturer of video-game cartridges, has determined from records that 1.4% of the cartridges sold have video defects, 0.8% have audio...

The quality-control department of Starr Communications, the manufacturer of video-game cartridges, has determined from records that 1.4% of the cartridges sold have video defects, 0.8% have audio defects, and 0.2% have both audio and video defects.