What does 'alpha=0.5' mean in a scatter plot?

In a scatter plot, the alpha parameter controls the transparency of the points. When you set alpha=0.5, it means that the points will be semi-transparent, allowing you to see overlapping points more clearly.

• Range: The alpha value ranges from 0 to 1:
  • alpha=0 means fully transparent (invisible).
  • alpha=1 means fully opaque.

Using alpha=0.5 helps in visualizing data density, especially when points overlap, making it easier to interpret the distribution of data.