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Two boys A and B find the jumble of n ro...

Two boys `A` and `B` find the jumble of `n` ropes lying on the floor. Each takes hold of one loose end randomly. If the probability that they are both holding the same rope is `1/(101)` then the number of ropes is equal to

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CENGAGE-PROBABILITY AND STATISTICS-Question Bank
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  12. If a variable takes the discrete values p+4, p-7/2, p-5/2, p-3, p-2, p...

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  13. The variance of 20 observations is 5 . If eech observation is multipli...

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  14. The mean weight of 9 items is 15 . If one more item is added to the se...

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  15. Consider the frequency distribution of the given pumber If mean of the...

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  16. x1, x2 …. x(34) are numbers such that xi=xi+1-150 forall i in1,2,3, .....

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  17. The mean of 5 observations is 4 and their variancé is 52 . If three of...

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  18. If x1, x2, .. x18 are observations sach the underset(j =1)overset(18)...

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  19. Two cards are drawn without replacement from a wellshuffled deck of 52...

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  20. Let x1, x2 ... xn be n observations sach that sum xi^2=200 and sum xi=...

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