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If the variance of a distribution is 4 c...

If the variance of a distribution is 4 coefficient of variation is 5%,then mean of the distribution is ___

A

a)20

B

b)40

C

c)60

D

d)70

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UNITED BOOK HOUSE-MODEL QUESTION PAPERS-SET 6-EXERCISE
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  2. Two imbaised coins are tossed at a time. What is the probability of ge...

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  3. If the variance of a distribution is 4 coefficient of variation is 5%,...

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  4. Find the power set of A = {{a}, {b, c}}

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  5. If P = {4. 5},'Q = {7}. find the defined relations from P to Q.

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  6. Find the value of cos 10^@ + cos 110^@+ cos 130^@

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  7. In /\ABC, if (c + a + b) (a + b - c) = ab, find the-value of angleC.

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  8. If alpha,betabe the imaginary cube root of unity, then show that alpha...

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  9. Find the number of diagonals of a polygon having sides 10.

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  10. Show.that there will be-no term containing P^6 in the expansion of (2...

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  11. Which term of this-progression 0.004, 0.02, 0.1..... is 12.5?

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  12. Find the gradient of a straight line which is passes through the point...

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  13. Show that the points A(1,2,3) ,B(-1,-2,-1) ,C(2,3,2) and D(4,7,6) are ...

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  14. If 2f(x).+ 3f(-x) = x^2-x+1, find the value of f(1).

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  15. Evaluate:lim(xrarr0)(e^(x^2)-cosx)/x^2

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  16. Three Coins are tossed: What is the probability of getting at least on...

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  17. If mean = 10, coefficient of variation = 50%, find the standard deviat...

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  18. In three sets, A,B, C, show that (A cap B)' = A' cup B'.

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  19. If tantheta=(tanalpha+tanbeta)/(1+tanalphatanbeta),then show thatsin2t...

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  20. In any/\ABC, show that ‘c sin (A-B)/2=(a-b)cos(C/2)

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