Examlex
Since they focus on two tails of the distribution,directional tests are often referred to as two-tailed tests.
Free African-Americans
Individuals of African descent living in the United States who were not enslaved and had certain legal rights, particularly before the Civil War in both the North and the South.
Ghana
A country located along the Gulf of Guinea and the Atlantic Ocean, in West Africa, known for its diverse ecosystems, rich cultural heritage, and historical significance.
Common Schools
Early public schools in the United States aimed at offering basic education to children of all social classes.
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