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If the mean square deviation of a variab...

If the mean square deviation of a variable x about 7 is 25 and the mean of x is 10, find var `((x-10)/4)`.

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UNITED BOOK HOUSE-Model Test Set - 5-Exercise
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  2. name the different phases of human growth.

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  3. If the mean square deviation of a variable x about 7 is 25 and the mea...

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  4. What are different measures of skewness.

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  5. A, B and C are three mutually exclusive and exhaustive events associat...

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  6. The probability that a student passes a physics test is 2/3 and the th...

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

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  8. What is the difference between A^@ and AU?

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  9. Write a short note on histogram of a frequency distribution.

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  10. If the relation between two variables x and y is 2x + 3y = 7 and media...

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  11. Suppose 2x - 3y = 5 is the relation between the varibles x and y. If t...

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  12. Derive Largrange’s interpolation formula for n = 3.

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  13. Prove that /\^2(ab^(ex))=(b^c-1)^2ab^(ex).

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  14. Given that x. y, z are unequal positive numbers show that 1/x+1/y+1/z ...

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  15. Prove that log5^7 < sqrt2.

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  16. If A an B are two events such that P(A) = 3/4 and P(B^c) = 3/8. then p...

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  17. An investment consultant predicts that the odds against the price of a...

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  18. A and B alternatively toss a fair coin. The first one to throw a head ...

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  19. What do you mean by purchasing power of money?

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

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