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find h.m of the numbers 1, 2, 5, 10, 20....

find h.m of the numbers 1, 2, 5, 10, 20.

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Statement I : If the arithmetic mean of two numbers is (5)/(2) , geometric mean of the numbers is 2, then the harmonic mean will be (8)/(5) . Statement II : For a group of positive numbers (G.M.)^(2) = (A.M.) xx (H.M.)

Fill in the blanks Mode of the numbers 5,5,10,10,15,15,15,15,20,25 is_____.

Find the sum of the numbers in the nth bracket of the following sequence : (1), (2, 3), (4, 5, 6), (7, 8, 9, 10),….

The sum of three numbers of GP is 39/10 and their product is 1. Find the numbers.

If the G.M. and H.M. of two numbers are 15 and 9 respectively, find the numbers.

If A.M. of 7, x-3, 10, x+3 and x-5 is 15, find the median of the numbers.

Between 1 and 31, m numbers have been inserted in such a way that the resulting sequence is an A. P. and the ratio of 7^(th) and (m - 1)^(th) numbers is 5 : 9. Find the value of m.

If the A.M. and H.M. of two numbers are 15 and 9(3)/(5) respectively, find the numbers.

Find the value of the determinant |[1, 1, 1, 1],[ 1, 2, 3, 4],[ 1, 3, 6, 10 ],[1 ,4 ,10 ,20]|

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UNITED BOOK HOUSE-Jodhpur Park Boys School, Question Paper -Exercise
  1. Given that the cumulative frequencies of less than type and more than ...

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  2. Find the standard deviation of the following data : 49,63,46,58,52,6...

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  3. The first three moments of a distribution about the value 2 of the var...

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  4. Write notes on : Relative dispersion and its measures.

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  5. Find the polynomial function f(x) for which it is known that f(0) = 1,...

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  6. True/false: Sometimes a quantitative variable can be looked upon as a...

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  7. True/false: If all the values lie between two numbers then their harm...

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  8. True/false: Temperature is a discrete variable.

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  9. True/false: S.D. cannot exceed Mean deviation about mean.

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  10. True/false: log2 5 > log3 6

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  11. Fill in the blanks: Mean deviation is minimum when deviations are tak...

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  12. Fill in the blanks: If f(1) = 2 F(50) = -23, then f(3) = .

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  13. Class mark of a class is

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  14. If u is proportional to v then

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  15. find h.m of the numbers 1, 2, 5, 10, 20.

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  16. y prop x^2 and y=9 when x =9 . If y =4 then find the value of x .

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  17. If f(2) = 9 and f(5) = 17 then Deltaf(2) = (fill in the blanks)

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  18. If f(x) be a polynomial of degree 1, then Delta^2f(x) = (fill in the b...

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  19. Define frequency density of a class interval.

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  20. Write the empirical relation between mean, median and made for a moder...

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