8. Are these ratios equvalent?
9: 3 arid 15:5 and 3:1...
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Mathematics, 21.06.2019 21:50
Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?
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Mathematics, 21.06.2019 22:00
Two numbers have a sum of -19. one number is x. what expression represents the other number?
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Mathematics, 21.06.2019 23:00
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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