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The G.M of two numbers is 18. If by mist...

The G.M of two numbers is 18. If by mistake one figure is taken as `r^2` instead of 21, find the correct G.M.

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UNITED BOOK HOUSE-Ramakrishna Mission Boys Home High School, Question Paper -Exercise
  1. What are the tests proposed by Fisher's for checking the goodness of a...

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  2. There are three children aged 3, 4 and 5 years in a room. If another 4...

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  3. The G.M of two numbers is 18. If by mistake one figure is taken as r^2...

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  4. How the median is affected all the original observations are increased...

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  5. Write two numbers with mean 10 and variance 4.

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  6. If two variables x and y be connected by the relation x = a + by then ...

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  7. Prove that the A.M of the reciprocal of two numbers can not be smaller...

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  8. If the sum of the squares of the differences of the 10 values of a var...

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  9. Find the A.M. of 0.5, 0.55, 0.555,…………….upto k-th term.

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  10. Define ordianl and nominal data.

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  11. If the mean of the five consecutive positive integers is 12, find the ...

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  12. Find out the Quartile deviation of a symmetrical distribution having Q...

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  13. Distinguish between primary and secondary data.

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  14. State and prove Cauchy-Schwartz inequality.

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  15. Define Pearson's 2nd measure of skewness (SK2). Prove that -3 le Sk2 l...

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  16. Describe the different parts of a table.

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  17. Derive the median formula for a continuous frequency distribution.

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  18. Distinguish between striated muscle and smooth mucle

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  19. For three values a, (a+b)/2 and b(> a) find the value of range/sd.

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  20. In a certain distribution of the first three moments about the value 4...

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