Assume that there is a 6% rate of disk failure in a year. A. If all of 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? With two hard disk drives, the probability that catastrophe can be avoided is __? (Round to four decimal places as needed.) B. If copies of all your computer data are stored on three independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive? With three hard disk drives, the probability that catastrophe can be avoided is __? (Round to six decimal places as needed.)