Components of a switch of an energy saving kettle

How can data be added to a new table in data base

Which of the following has not been attributed at least in part to social media a. drug addiction b. depression c. kidnapping d. murder

Assume that there is a 4% 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 three independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?