Cơ sở nào để lựa chọn phương pháp xử lý dữ liệu theo lô, phương pháp xử lý trực tuyến theo thời gian thực?

The north and south regions had very diferent economies in the 1800s.

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?

From excel to powerpoint, you can copy and paste a. cell ranges and charts, one at a time. b. cell ranges and charts, simultaneously. c. charts only. d. cell ranges only.