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In a hospital, there are 5 dialysis mach...

In a hospital, there are 5 dialysis machine. The chance of any one of them being defective during a day is `1/10`. Find the probability that two machines will be out of order on the same day. What is the probability that at least one machine is in working order? Is this situation alright for a small hospital?

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MODERN PUBLICATION-PROBABILITY-EXERCISE
  1. If getting a '5' or a '6' in the throw of an unbiased die is a 'succes...

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  2. On a multiple choice examination with three possible answers for each ...

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  3. In a hospital, there are 5 dialysis machine. The chance of any one of ...

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  4. Calculate P(r) for r=1,2,3,4 and 5 by using the recurrence formula of ...

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  5. Calculate P(r) for r=1,2,3,4 and 5 by using the recurrence formula of ...

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  6. Five dice are thrown 729 times. How many times do you expect that at l...

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  7. An unbiased coin is tossed 4 times. Find the mean and variance of the ...

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  8. If the mean and variance of a binomial distribution are 9 and 6 respec...

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  9. The sum of mean and variance of a binomial distribution of 18 trials i...

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  10. If the sum of the mean and variance of a binomial distribution of 5 tr...

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  11. The mean and variance of a binomial variable X are respectively 4 and ...

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  12. If the sum of mean and variance of a binomial distribution is 1.8 for ...

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  13. Determine the binomial distribution whose mean is 10 and whose standar...

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  14. Find the binomial distribution whose: mean is 4 and variance is 3.

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  15. Find the binomial distribution whose: mean is 9 and variance is 6.

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  16. If 12 dice are rolled at random, obtain the mean and variance of the d...

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  17. A die is thrown 20 times and getting a number 'greater than 4' is cons...

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  18. 10 coins are tossed at random. Obtain the mean and variance of the num...

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  19. The sum and product of the mean and variance of a binomial distributio...

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  20. A die is thrown 6 times. Find the mean and variance of the number of a...

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