Y'all asked for a second part so heres the tea about DORA
so we all know boots and Dora are a thing
Diego and Dora dated but she cheated on him for boots
and then Dora got deported unfortunately
idk what else lolol #FREEDORA

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?