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If the AM of 13, 15, 16, 12, x be y and ...

If the AM of 13, 15, 16, 12, x be y and that of 13, 15, 16, 12 , y be x, then find x and y.

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UNITED BOOK HOUSE-Question Paper 2014-Exercise
  1. Two fair dice are thrown. If the sum of two numbers obtained is 8, the...

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  2. If the number of educated persons is 65% of the population, then in Pi...

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  3. If the AM of 13, 15, 16, 12, x be y and that of 13, 15, 16, 12 , y be ...

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  4. If arithmetic mean and coefficient of variation of x is 6 and 50% resp...

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  5. If 2u = 5x and the harmonic mean of x is -0.4, then find the harmonic ...

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  6. If P(A uu B) = 2/3 then find the value of P(A^C nn B^C).

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  7. If P(A | B) = a and P(B) = b, then express P(B - A) in terms of a and ...

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  8. What is the probability of drawing one white ball from a bag containin...

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  9. If P(A | B) = 1/4 , then what is the value of P(A^C/B)?

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  10. If P(A1) = 0.2, P(A2) = 0.1 and P(A3) = 0.3 and these events are mutua...

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  11. If the cost of a dozen eggs is Rs. 48. Let's find the cost of 32 eggs.

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  12. Write true or false: "Index number is unit free number".

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  13. Find the arithmetic mean of first n odd positive integers.

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  14. Find the harmonic mean of 1, 1/2. 1/3,………..1/n

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  15. If the standard deviation of the set of numbers 1,2,3,……….k is 2, then...

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  16. What are the limitations of the classical definition of probability?

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  17. If P(A) = 1/2, P(B) = 1/3 and P(A^C nn B^C) = 5/12 find P(A/B).

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  18. If P(A uu B) = 7/12 and P(A) = 1/3 for two independent events A and B,...

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  19. What are the differences between primary data and secondary data?

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  20. If a variable be such that np observations are all equal to 1 and the ...

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