17. Aaron is practicing for a triathlon On Sunday, he bikes 12 miles and swims 5 mies on Monday, he runs 6 miles. How many total
miles does Aaron cover on the two days? Step by step

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?