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The variance of 1st n natural number is ...

The variance of 1st n natural number is 24. Find n.

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UNITED BOOK HOUSE-Model Test Set - 4-Exercise
  1. Give an exaMP01le of ordinal data.

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  2. What is the relation of median, of a distribution with its quartiles?

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  3. The variance of 1st n natural number is 24. Find n.

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  4. For two independent events A and B with P(A)=0.5, P(B^C)=0.3, find the...

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  5. Give the expression not more than two events occur’ for two arbitrary ...

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  6. What is Random experiment?

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

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  8. Draw venn-diagram to represent the following set (A cap B)-C.

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  9. Write down the Fisher’s Price index formula.

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  10. What do you mean by wholesale price index number ?

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  11. With reason write that whether the following statements is consistent ...

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  12. In a moderately skew distribution A.M. = 24.6 and the median = 26.1. F...

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  13. The mean, median and the coefficient of variation of a distribution ar...

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  14. For any two events A1 and A2, show that P(A1 cap A2)lemin{P(A1),P(A2)...

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  15. Show that if events A and B are independent, then so are A^c and B^c.

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  16. In a group of 20 males and 5 females, 10 males and 3 females ae servic...

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  17. The first two moments of a distribution about the value 5 are 3 and 25...

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  18. What are the principal characteristics of an ideal average?

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  19. If A.M and G.M of two positive real numbers are 25 and 15 respectively...

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  20. Find the condition that the equation x^3 + bx^2 + cx +d =0 may have tw...

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