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Question 2
A restaurant needs to buy six hundred ninety-eight and five tenths
new plates. If each box has twenty-seven plates in it, how many
boxes will they need to buy?
Type answer here

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?