I'm plotting a dataset with a trendline, but using `ols` vs `lowess` gives me significantly different line shapes. I'm sure this is an expected and perfectly normal result, but I'm afraid I don't understand the significance of the difference. Could someone explain what's going on?
Here's my code using `ols`:
```
fig = px.scatter(df_small, y="Ratio",
                 trendline="ols", 
                 trendline_color_override="red")
fig.show()
```
And here's the plot it produced:
[![enter image description here][1]][1]

Using `lowess` gave me this plot:
[![enter image description here][2]][2]
For context, my dataset represents the ratio of daily Covid deaths:new infections in the Province of Ontario over the previous 18 months. 


  [1]: https://i.sstatic.net/MXyzZ.png
  [2]: https://i.sstatic.net/MIbeQ.png