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

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UNITED BOOK HOUSE-Model Test Set - 9-Exercise
  1. If wrong correct the statement: mode can be obtained from ogive

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

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

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

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

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

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

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  8. 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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  9. Discuss about different sources of data on vital events.

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  10. What do you mean by Broca's Index?

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  11. Find the variance of the following observations : 30, 40, 50, 60, 70.

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  12. Let there be two sets of observations. The first set contains 10 obser...

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  13. Distinguish between primary and secondary data.

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  14. if P(A|B) = 1/3, P(A) = 1/4 and P(B) = 1/2, find the probability that ...

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  15. If P(A) = 0.2, P(B) = 0.3, P(C ) = 0.4 and A, B and C be independent t...

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  16. Write the axiomatic definition of probability?

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  17. Sum of the squares of deviation is least about

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  18. What do you mean by a cumulative frequency distribution. Point out its...

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  19. What is the value of Sheppard's correction of moments for m4?

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  20. For three unequal positive real numbers a, b, c show that (b + c) (c +...

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