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Q. The relative frequency approach is also called ................................

Q. If plotted points in a scatter diagram lie on a straight line vertical to the Y-axis, then r=.........

Q. Regression lines are also called .........................

Q. An event whose occurrence is impossible, is called ......................

Q. In .........................regression, only one independent variable is used to explain the dependent variable.

Q. Standard deviation of the sampling distribution is called ............................

Q. While analysing the relationship between variables, independent variable is also called..................................

Q. When the feasible region is such that the value of objective function can extended to infinity, it is called a case of ------------

Q. A _________ is a decision support tool that uses a tree-like graph or model of decisions and their possible consequences, including chance event outcomes, resource costs, and utility.

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