The harmonic mean of 4,8,16 is...

The harmonic mean of 4,8,16 is

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The harmonic mean of the roots of the equation (5+sqrt(2))x^2-(4+sqrt(5))x+8+2sqrt(5)=0 is 2 b. 4 c. 6 d. 8

x and y are two variables, such that y = (3)^(1/x) . If the harmonic mean of x is 3, find the geometric mean of y.

A variable line x/a + y/b = 1 moves in such a way that the harmonic mean of a and b is 8. Then the least area of triangle made by the line with the coordinate axes is (1) 8 sq. unit (2) 16 sq. unit (3) 32 sq. unit (4) 64 sq. unit

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UNITED BOOK HOUSE-Question Paper 2017-Exercise

Define Real Wage.
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State the Factor Reversal Test of index number.
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Show that for a set of first n (le 2) natural number n < [n+1/2]^n
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What is the difference between cross sectional data and Time series da...
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If A and B are two events then show that P(B) = P(A). P(B/A) + P(A^C)....
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If A^c and B^c are two independent events, then show that A and B are ...
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x and y are two variables, such that y = (3)^(1/x). If the harmonic me...
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What are the differences between primary data and secondary data?
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What is mail questionnaire method? When this method is useful?
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If two positive values of a variable be x(1) and x(2) and the arithmet...
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State and prove that Cauchy-Schwarz inequality.
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Derive the expression of 4th order central moments in terms of raw mom...
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If three numbers are drawn are drawn at random from the frist 30 natur...
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The harmonic mean of 4,8,16 is
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What is Family budget enquiry?
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What is real life application of Life Table?
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State Lagrange's interpolation formula.
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If s and R are respectively the standard deviation and range of set of...
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Prove that mean deviation will be minimum when deviation are taken fro...
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A problem of Statistics is given to three students A, B and C, where c...
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