The following observations are given for two variables. 
a.Compute and interpret the sample covariance for the above data.
b.Compute the standard deviation for x.
c.Compute the standard deviation for y.
d.Compute and interpret the sample correlation coefficient.
Definitions:
William McKinley
25th President of the United States, led during the Spanish-American War, assassinated in 1901.
William Jennings Bryan
William Jennings Bryan was an American orator and politician from the late 19th and early 20th centuries, known for his advocacy of populism, free silver, and as a three-time Democratic presidential nominee.
Fourteenth Amendment
The Fourteenth Amendment to the United States Constitution granted citizenship to all persons "born or naturalized in the United States," including former slaves, and provided all citizens with “equal protection under the laws.”
Southern African Americans
Individuals of African descent primarily residing in the Southern United States, historically facing significant racial discrimination and socio-economic challenges.
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