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If x1, x2,…….xn are real quantities. Pro...

If `x_1`, `x_2`,…….`x_n` are real quantities. Prove that `1/n overset(n)underset(i=1)sum x i^2 ge (1/n overset(n)underset(i=1)sum|x i|)^2`

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UNITED BOOK HOUSE-Model Test Set - 9-Exercise
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  3. Write the axiomatic definition of probability?

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  7. For three unequal positive real numbers a, b, c show that (b + c) (c +...

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  8. If x1, x2,…….xn are real quantities. Prove that 1/n overset(n)underset...

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  9. First the greatest common divisor of 801 and 423.

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  11. Show that if events A and B are independent, then so are A^c and B^c.

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  13. A box contains 7 white and 5 black balls two are drawn at random find ...

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  16. What are different measures of skewness.

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  17. Let x be a variable assuming the values 1, 2,……….k and let F1 = n, F2,...

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  18. Suppose that all the four possible outcomes e1, e2, e3, e4 of an exper...

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  19. Prove that Fisher's ideal index number lies between Laspeyre's and Paa...

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  20. Define standardised death rate. Discuss the direct method of standardi...

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