Aquality control officer is randomly checking the weights of candy bags being filled by an automatic filling machine. each bag is advertised as weighing 500 grams. a bag must weigh within 5.3 grams in order to be accepted. what is the range of rejected bags, x, for the bags of candy?

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?