A bag contains 15 beads. Six are black
and the rest white. Two beads are
drawn at random, wit...
Mathematics, 25.01.2021 05:30 mel4245
A bag contains 15 beads. Six are black
and the rest white. Two beads are
drawn at random, without replacement
Find the probability of getting 2 black
beads.
Answers: 3
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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?
Answers: 2
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