lwfrgin

2020-11-12

What kind of plot is useful for deciding whether it is reasonable to find a regression to find a regression plane for a set of data points involving several predictor variables?

l1koV

Skilled2020-11-13Added 100 answers

Step 1

Scatterplot matrix:

A scatterplot matrix is an array or a collection of scatterplots, consisting of all possible scatterplots of the response variable drawn against each predictor and also, between every pair of predictors.

Step 2

A careful inspection of the scatterplot matrix reveals the nature of relationship between all the variables in the data set. It is known that it is reasonable to fit a regression plane to a data, only if there exists a linear relationship or at least, a somewhat linear relationship of the response variable with each of the predictor variables.

Thus, the plot that is useful for deciding whether it is reasonable to find a regression plane for a set of data points involving several predictor variables is a scatterplot matrix.

Scatterplot matrix:

A scatterplot matrix is an array or a collection of scatterplots, consisting of all possible scatterplots of the response variable drawn against each predictor and also, between every pair of predictors.

Step 2

A careful inspection of the scatterplot matrix reveals the nature of relationship between all the variables in the data set. It is known that it is reasonable to fit a regression plane to a data, only if there exists a linear relationship or at least, a somewhat linear relationship of the response variable with each of the predictor variables.

Thus, the plot that is useful for deciding whether it is reasonable to find a regression plane for a set of data points involving several predictor variables is a scatterplot matrix.

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