Step 3: Collect and Record Your own data! Ask exactly 25 people the same question as above (How many movies did you see in the last month). Record your data and Create a dot plot showing your results.

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?