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A.M., G.M., and H.M. in any series are e...

A.M., G.M., and H.M. in any series are equal when

A

a) the distribution is symmetric

B

b) all the values are same

C

c) the distribution is positively skewed

D

d) the distribution is unimodal

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If A.M., G.M., and H.M. of the first and last terms of the series of 100 , 101 , 102 ,...(n-1),n are the terms of the series itself, then the value of n is (100ltnlt500)

If the values of a variable are in G.P, then prove that A.M., G.M., H.M. of the values are also in G.P.

The A.M. and H.M. between two numbers are 27 and 12, respectively, then find their G.M.

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

If the A.M. and G.M. of two positive real nos. are 45 and 9 respectively, then find their H.M.

The A.M. between m and n and the G.M. between a and b are each equal to (ma + nb)/(m+n) . Find m and n in terms of a and b.

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

If A.M. and G.M. of two positive real numbers are 25 and 15 respectively, then find their H.M.

If A and G be A.M. and G.M., respectively between two positive numbers, prove that the numbers are A pm sqrt((A+G )(A−G )) .

If A.M. and G.M. of roots of a quadratic equation are 8 and 5, respectively, then obtain the quadratic equation.

UNITED BOOK HOUSE-Model Test Set - 9-Exercise
  1. Step diagram is used for presenting.

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  2. In a frequency curve of scores, the mode was found to be higher than t...

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  3. A.M., G.M., and H.M. in any series are equal when

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  4. The column diagram is appropriate for exhibiting the frequency distrib...

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  5. If Deltax = 1, the Delta(5x^2) =

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  6. When (x^5 - 1) is divided by (2x + 1), then the remainder is

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  7. If 0 < 1 < 1 and x > y > 0 then loga^x < loga^y (write true or false)

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  8. If a equiv b (mod n), then a^3 equiv b^3 (mod n) (write true or false)...

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  9. The probability of drawing any one spade card from a pack of card is

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  10. A single letter is selected at random from the word probability. The p...

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  11. Let x be a variable assuming values x1, x2,…….xn state the condition w...

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  12. If the value of a variable are 4, 4, 3, 3, 4, 1, 2 then find the value...

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  13. If wrong correct the statement: mode can be obtained from ogive

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  14. If x=5 find the value of the algebraic expressions: x^3+8.

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  15. If all the values of a variable are equal to 7 then what is its varian...

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  16. P(A) = 1/2, P(B) = 2/3, what will be the least value of P(A nn B).

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  17. A-set contains 4 elements. It’s power set will contain element.

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  18. Draw venn diagram to represent the following set : (A cup B)-C.

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  19. Draw Venn diagram to represent the following sets A B^c

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  20. Let A and B be two events such that P(A) = 0.3 and P(A cup B) = 0.8. I...

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