$2\mathrm{.}7\mathrm{.}5$ WP SS Redundant array of inexpensive disks $($RAID$)$ is a technology that uses multiple hard drives to increase the speed of data transfer and provide instant data backup. Suppose that the probability of any hard drive failing in a day is $0\mathrm{.}001$ and the drive failures are independent.

a$.$ A RAID $0$ scheme uses two hard drives, each containing a mirror image of the other. What is the probabitity of data loss? Assume that data loss occurs if both drives fail within the same day.