Untitled

we <- c(55,60,70,75,75)

we2 <- c(155,160,170,175,175)

mean(we)  

## [1] 67

plot(we,we2,
     pch = 17,
     col= "skyblue",
     main ="班上的體重與身高",
     xlab ="體重",
     ylab ="身高")

data<- c(50,23,35,48)
labels <- c("英文系","法文系","德文","翻譯")

pie(data,labels,main ="學生的比例", col=heat.colors(length(data)))