Q$2$

$1$ Point

Suppose we have data $($survey$)$ with a variable "state" that represents the state of residence of

respondents in a telephone survey. We wish to calculate the highest income of the residents in

each state. Which of the following would be the proper way to calculate the maximum income in

each state?

survey.groupby $("$state$")["$income$"].$ max $()$

survey$["$income$"].$ groupby $("$state$").$max$()$

survey $["$state$"].$ groupby $()["$income$"].$ max$()$

survey $.$groupby $("$state$").$max $("$income$")$