The table shows the amount of green paint that can be added to different amounts of white paint while making a custom paint color: Paint Color Quarts of Green Paint Quarts of White Paint 3 6 4 8 5 10 6 12 Which statement is true about the ratio of green paint to white paint in the paint color? It is 1:2. It is 2:1. It is 1:3. It is 3:1.

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?