In math and statistics, you may occasionally need to calculate the slope of a line generated by coordinates in the (x,y) format. The slope is a value that indicates the rate at which the y value of a ...
When you see a flat line on a graph, it’s tempting to think, “Oh hey, at least the situation isn’t getting any worse!” But one of the common types of charts we see for COVID-19 is of new cases per day ...
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