Xan will cover some of this box in wrapping paper. he plans to leave one of the largest faces uncovered.
12 cm
10 cm
11 cm
how much wrapping paper will xan need?
592 square cm
614 square cm
724 square cm
808 square cm

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?