If All the Points in a Scatter Diagram Lie on the Least

question 28

Short Answer

If all the points in a scatter diagram lie on the least squares regression line, then the coefficient of correlation must be: $\begin{array}{|l|l|}\hline A&\text {1.0 }\\\hline B&\text { -1.0}\\\hline C&\text { either } 1.0 \text { or }-1.0\\\hline D&\text { 0.0 }\\\hline \end{array}$

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Definitions:

Reconstruction Merits

The benefits or positive outcomes of the Reconstruction era in the United States, particularly relating to the attempts to address the inequalities and injustices experienced by African Americans and rebuilding the Southern states post-Civil War.

Black Soldiers

Refers to African American military personnel who have served in various wars, often facing racial discrimination while contributing significantly to their nation's defense.

Immigrants Arrival

The act or process by which people from other countries come to a country to live permanently, contributing to the cultural, economic, and demographic dynamics of the receiving nation.

Southern Europe

A region of Europe covering the southern part of the continent, including countries like Spain, Italy, Greece, and Portugal, known for its Mediterranean climate.