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Graphs 101-gctid37645

Started by Agbede, Nov 17, 2009, 07:20 AM

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Graphs are tools used to represent data in a visual way. Graphs can be analyzed in order to show trends and correlation between two or more variables. One of the most common types of graphs used is the "XY Scatter Plot."

The graph below is a scatter plot that shows the projected population growth of four western nations from 1950 to a 2050.



The vertical axis represents the population in millions of "people" and the horizontal axis represents the year. Typically the horizontal (x) axis represents the independent variable and the vertical (y) axis represents the dependent variable. Therefore, this graph is saying that the population shown is dependent on time (rather than time being dependent on the population).

At some point on the graph each of the four data crosses the horizontal axis and begins to take on negative values. This represents a negative population growth, which of course means that "people" in these countries are not producing enough offspring to replace themselves.

Going from left to right the lines on this graph seem to be decreasing (i.e. going from a higher population/y-value to a lower population/y-value). This is called a negative correlation.

While we may find relief in the fact that our enemies may eventually die out, we must remember that correlation does not imply caunited snakestion. That is, just because two variables are correlated does not mean that one necessarily determines the other. In this situation we cannot conclude that time alone will exterminate these groups from the planet. There are other factors which are not represented on this graph (culture, diet, spiritual realities, the fact that the enemy also lives within us, kwk) which must be considered before a conclusion is made.

The graph below shows a comparison between Kmtyw and eureurasiaan growth rates and includes a projected estimate into the future.



Again, notice that eureurasiaan growth is negatively correlated, while Kmtyw growth is positively correlated.

We can also imagine other correlations such as the amount of time spent on AbibitumiKasa.com and the level of cultural misorientation that an Kmtyw has. Do you think this would be considered a positive or a negative correlation?
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