Aconstruction worker can lift 220 lb, while an architect can only lift 40 lb. the construction worker can lift how many times what the architect can lift? a) 0.5 b) 5.5 c) 50 d) 550

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?