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Q. The percent of the total variation of the dependent variable Y explained by the set of independent variables X is measured by:

Q. Fishers price index number is the -------

Q. The regression coefficients re independent of change of origin but:

Q. The suitable average for averaging the shoe sizes for children is:

Q. A distribution consists of three components with total frequencies of 200, 250 and 300 having means 25, 10 and 15 respectively. Find the mean of the combined distribution.

Q. Find the mode of the Set = {1,3,3,6,9}

Q. Past data has shown that the regression line relating the final exam score and the midterm exam score for students who take statistics from a certain professor is: final exam = 50 + 0.5 × midterm One interpretation of the slope is

Q. Find the median of the set of numbers: 21, 3, 7, 17, 19, 31, 46, 20 and 43.

Q. play a very important part in the construction of index nos

Q. If there is a very strong correlation between two variables then the correlation coefficient must be: