Interpreting Scatterplots
Zack Gomez
Scatterplots
- A scatterplot is a graph of data points
- Scatterplots have trends that we call correlations
- Positive correlations have a trend that continues up (positive)
- Negative correlations have a trend that continues down (negative)
- Constant correlations have a trend never changes that stays the same (constant)
- No correlations are points on a graph scattered randomly
Example
The graph above represents the decline of leave on a tree thru the months of July - January. What type of trend is shown on the graph?
Key questions
- Why don't the points have a line connecting them? There is no fraction data
- How are constant correlations and no correlations different? No correlations do not a have a trend to follow, constant correlations follow a repeating trend going left to right
- Why does this graph have no correlation? If the data you received is none constant and is unpredictable