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The arithmetic mean and standard deviati...

The arithmetic mean and standard deviation of 7 observations are respectively 8 and 16. If five of the observations are 2, 4, 10, 12 and 14 then find the values of the remaining two.

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CHHAYA PUBLICATION-MISCELLANEOUS EXAMPLES-HS (XI) AND WBJEE 2018 (GROUP - C)
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  5. Prove that x^(n)-y^(n) is divisible by (x-y) for all n""inNN

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  7. Find the rank of the word 'MOTHER' in dictionary format.

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  8. If the coefficients of 2nd, 3rd and 4th terms in the expansion of (1+x...

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  11. The abscissae of the two points A and B are the roots of the equation ...

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  14. Write the negation of each of the following statements: p : For ever...

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  15. Consider the statement: p: If x is real number such that x^(3)+4x=0,...

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  16. A bag contains 5 white and 4 black balls. If 3 balls are drawn at rand...

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  17. The arithmetic mean and standard deviation of 7 observations are respe...

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