The Anderson family is preparing for a family reunion. The Andersons think they will need 8 juice boxes for every 4 children who attend. How many juice boxes will they need if they are expecting 26
children?

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?