Reflection

The first thing will be learn to use other high level data visualizing software! I am so annoyed about myself when I created those graphs because they are neither nice looking nor well-organized, so the great advantages of using data visualization were impaired. That is the major part of my concern.

Another thing is the selection of data. I should get the same amount of data for each college (but there are just not too many professors been rated) so that the trend will be more convincing.

Still, I am happy about what I've done. Through the process I also know there is nothing called 'high rating for easiness'. It cannot be shown by the trends, but if you see the y-axis clearly, you will notice the highest rating for easiness is nearly 4 out of 5.

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