the black line on the scatterplots represents the linear
variation investigate sources cause & effect pareto scatter
![scatter(tips[ "total_bill"], tips[ "tip"], c= "#bcbd22", marker=](https://i.ssjz8.com/upload/1/img1.baidu.com%2fit%2fu%3d2791231199%2c3504114100%26fm%3d26%26fmt%3dauto "Cscatter-brain,")
scatter(tips[ 'total_bill'], tips[ 'tip'], c= '#bcbd22', marker=
arm cortex-m嵌入式c基础编程(下)
(c) 2d scatterplot exhibits the c versus τ results.