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NEW JOYTHI PUBLICATION-STATISTICS-QUESTIONS FROM COMPETITIVE EXAMS
- The standard deviation of n obervations x(1),x(2).....,x(n) is 2. If s...
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- The standard deviation of the numbers 31,32,33, ……., 46,47 is
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- The standard deviation for the scores 1,2,3,4,5,6, and 77 is 2. Then ...
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- If the variance of 1,2,3,4,5 , …., 10 is (99)/(12), then the standard ...
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- If ""^(n)C(8)=""^(n)C(2), find ""^(n)C(2).
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- The arithmetic mean of 7 consecutive integers starting with 'a' is m. ...
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- The mean and variance of n observations x(1),x(2),x(3),...x(n) are 5 a...
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- If the standard deviation of 3,8,6,10,12,9,11,10,12,7 is 2.71 , then t...
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- The A.M of 9 terms is 15. If one more term is added to this series , ...
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- If the average of the numbers 1,2,3,…., 98,99,x is 100x, then the valu...
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- If the median of (x)/(5),x,(x)/(4),(x)/(2),(x)/(3)(xgt0) is 8, then t...
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- The mean of five numbers is 0 and their variance is 2. If three of tho...
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- A batsman in his 16^(th) innings makes a score of 70 runs and thereby ...
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- If the variance of 1,2,3,4,5,….., x is 10, then the value of x is
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- Mean of 10 observations is 50 and their standard deviation is 10 If e...
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- If sum(i=1)^(9)(x(i)-5)=9andsum(i=1)^(9)(x(i)-5)^(2)=45, then the sta...
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- The standard deviation of 9,16,23,30,37,44,51 is
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- In a class of 100 students there are 70 boys whose average marks in a ...
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- In an experiment with 15 observation on x, the following results were...
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- The median of a set of a set of 9 distinct observations is 20.5 . If e...
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