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If two variables x and y are so related as 3x + 4y = 21 and `Q_1` and `Q_3` of x are -1 and 7 respectively, then `Q_3` of y is

A

0

B

6

C

21

D

(-)7/3

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UNITED BOOK HOUSE-Question Paper 2018-Exercise
  1. If two variables x and y are so related as 3x + 4y = 21 and Q1 and Q3 ...

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  2. The mean of n observation is a. If the 1st observation is increased by...

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

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  4. Which of the following is a Fermat's number?

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  5. 44 ≡ 6 (mod n) where n can be

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  6. Delta^4(3x^3 + 7x + 8) =

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  7. For 2 positive numbers m and n, which is the correct relation for (m+n...

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  8. If A and B are two mutually exclusive event then P(A-B) =

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  9. For any two events A and B which relation is not correct?

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  10. Which percentile is taken as the measure of central tendency?

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  11. What is cross-sectional data?

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

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  13. If g2 < 0, then mention the name of the distribution on the basis of K...

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  14. If the mean and mode of a distribution is 5 and 4 respectively, then f...

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  15. There are two children in a family.One of them is a girl child .What i...

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  16. What is the chance of throwing a 6 at least once in 5 trials of an unb...

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  17. If p be occurrence of an event in a single trail, then show that the p...

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  18. If A and B are 2 event with probability P(A) and P(B), then find the p...

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  19. Define Real wage.

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  20. Define simple aggregative price index.

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