Pablo was getting ready for a bike race. • He rode his bike each day for 32 days.

• He rode his bike for 45 minutes each day.

How many minutes did Pablo spend riding his bike to get ready for the race?

A
288

B
1,360

C
1,431

D
1,440

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?