Question: Expectancy graphs are developed from empirical data by assuming linear regression and a normal bivariate correlation surface, the characteristic oval-shaped outline of a bivariate scatterplot

Expectancy graphs are developed from empirical data by assuming linear regression and a normal bivariate correlation surface, the characteristic oval-shaped outline of a bivariate scatterplot when both distributions are approximately normal.

Question: Of which of the following common graph types is the expectancy graph a variant?

(A) Scatter plot

(B) Bar plot

(C) Pie chart

(D) Line graph

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