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Assume that there is a 4% 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 three independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

How would you categorize the software that runs on mobile devices? break down these apps into at least three basic categories and give an example of each.

Where can page numbers appear? check all that apply. in the header inside tables in the footer at the bottom of columns at the top of columns