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The sum of the 20 observations is 100, t...

The sum of the 20 observations is 100, then the sum of squares of these observations is at least

A

25

B

100

C

500

D

2500

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UNITED BOOK HOUSE-Model Test Set-2-Exercise
  1. The sum of the 20 observations is 100, then the sum of squares of thes...

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  2. If 3u + 4v =10 nd Su = 1.2. then Var (v) = 0.81

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  3. The H.M of a set of values is 2. If each value is tripled, the new H.M...

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  4. Division obtained in an examination is

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  5. For a constant c, the value of /\(c) is

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  6. In Lagrange’s interpolation formula the values of the argument are

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  7. The degree of the polynomial 7x^5 + 5x^9 + 3x^2 + 4x + 1 is

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  8. The greatest common divisor of 29 and 2

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  9. A and B are mutually independent implies P(AIB) = P(A).

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  10. If event A implies B. then P(A) le P(B)

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  11. If the algebric sum of the deviations of 20 observations measured from...

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  12. State the empirial relation between mean, median and mode.

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  13. Which measure of dispersion do you use for a frequency distribution wi...

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  14. For a symmetrical distribution Q1 = 28 and Q3 = 46. Find the median?

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  15. Write down the importance of class bounderies in case of continuous va...

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  16. 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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  17. If events A and B are complementary to each other, then P(B) =?

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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 set : A cap B^c.

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

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