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Q. If r= +1, the correlation is said to be .......................

Q. In a regression line of Y on X, the variable X is known as ..................................

Q. When the values of two variables move in the opposite direction, correlation is said to be……

Q. If m is the correlation coefficient, then the quantity (1-m2) is called ......................

Q. The square root of coefficient of determination is ...................

Q. Sample point is also called .........................

Q. The quantitative measure of correlation between two variables is known as.....................

Q. ...............................is an operation research technique which resembles a real life situation.

Q. ................................is the geometric mean of two regression coefficients.

Q. Coefficient of correlation is independent of ........................................