PLEASE HELP BETS ANSWER GETS CROWN THERE ARE 2 QUESTIONS ANSWER LIKE THIS
Q1. ANSWER
Q2. ANSWER.

NO LINKS OR FILES PLEAS. (btw this is my last one)

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?