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PUNEET DOGRA-STATISTICS-PRE YEAR QUESTIONS
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- If the covariance between x and y is 30. variance of A is 25 and varia...
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- The scores of 15 students in an examination were recorded as 10, 5, 8,...
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- If x+y=18 and xy=72, what is the vlaue of x^(2)+y^(2)?
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- Two variates, x and y, are uncorrelated and have standard deviations,s...
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- If the total number of observations is 20. Sigmax(i)= 1000 and Sigmax(...
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- What is the mean deviation from the mean of the numbers 10, 9, 21, 16....
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- Mean of n observations x1,x2,….,xn is barx. If an observation xq is re...
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- For the data 3, 5, 1, 6, 5, 9, 5, 2, 8, 6 the mean median and mode are...
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- Simplify:- 1/8 of 2/3 of 3/5 of 1715 = ?
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- The regression coefficients of a bivariate distribution are -0.64 and ...
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- Which one of the following measures of central tendency will be used t...
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- Simplify:- ?% of 950 + 782 = 1200
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- Match List-I with List-II and select the correct answer from the codes...
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- The mean of five numbers is 30. If one number is excluded, their mean ...
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