Bonus **7. Determine if the following argument always applies, sometimes applies, or never applies. Provide at least 2 examples in your explanation. Percent is another way of writing a rate out of 100.

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?