My first markdown practice

I am going to attempt to create a code for the first time. To create a shortcut of a chunk, press control + alt + i for window user.

minutes <- c(20,60,30,20,30,30,20,25,30)
# this is the minutes that classmates are willing to tolerate listening to the professor's lecture for the rest of the night.

Claculate the mean numbers of minutes.

mean(minutes)
## [1] 29.44444

Create a histogram of numbers of minutes.

hist(minutes)