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Show that the probability that exactly one of the events A and B occurs is P(A) + P(B) - 2P(AB).

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UNITED BOOK HOUSE-Model Test Set - 8-Exercise
  1. The mean and standard deviation of two numbers are 10 and 2 respective...

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  2. What point should be kept in view during tabulation.

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  3. Show that the probability that exactly one of the events A and B occur...

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  4. If P(A) = 1/2, P(B) = 2/3, then prove that 1/6 le P(A nn B) le 1/2.

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  5. The probability of occurance of at least one of two events A and B is ...

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  6. What are skewness and kurtosis?

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  7. What is coefficient of variation? State its uses.

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  8. Discuss about different sources of data on vital events.

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  9. If x, y, z are positive quantities, prove that frac(x^3 + y^3)(x + y) ...

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  10. Prove that there are no integers x, y such that x + y = 200 and greate...

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  11. What do you mean by smog?

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  12. If n is an odd integer, Prove that 16 is a divisor of n^4 + 4n^2 + 11.

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  13. Write the classical definition of probability and state its limitation...

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  14. Prove that, if A1 and A2 are two events, which are not necessarily mut...

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  15. Find the probability that a leap year selected at random will contain ...

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  16. Show that criide death rate can be expressed as weighted arithmetic me...

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  17. Explain how would construct a cost of living index number (C.L.I)?

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  18. In a frequency table, the upper boundary of each class-interval has a ...

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  19. Write short note on FAO

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  20. A letter is taken at random from the letters of the word STATISTICS an...

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