The Sahara Desert forms a natural boundary for many countries. In particular, it forms the northern boundary of the West African states, and provides a boundary for Egypt. The Atlas Mountains provide a boundary between Morocco and the rest of Africa.
<span>Beyond this, the natural boundaries have little to do with Africa's current political boundaries. That is because the colonial powers, when they took over Africa, set their boundaries over these natural boundaries; to deliberately divide people of the same nationalities. </span>
<span>If the Sahara was grassland, of course more North African people would live there, reducing the population density of the current North African states.
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Harriet Tubman and<span> Frederick Douglass were both slaves that became abolitionists</span>
Increased colonist anger towards the British.
The northern hemisphere is called the land hemisphere because the greater part of the earth landmass lies in the northern hemisphere
The Southern Hemisphere is called the water hemisphere because it is made up of most of the seas like Pacific Ocean and the Indian Ocean
In the confidence interval method the sample data must come from a population that is normally distributed with no outliers.
A confidence interval is a range of values derived from observable data at a desired level of confidence that may include the parameter's true value. The confidence level, such as a 95% confidence level, refers to the accuracy of the estimating process rather than the degree of assurance that the computed confidence interval accurately represents the true value of the parameter under investigation. Confidence intervals are typically written as (some value) ± (a range). The range can be expressed as a percentage or as a real amount. The equation used to determine the confidence interval varies depending on which standard deviation is known.
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