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we are tired!!! How much longer should we go

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create our first chunk for code

creating a backward arror using the less than symbol and a dash— used to name a new object

minutes<- c(53,20,45,30,10,45,35,45,35,30,15,20,35,45,30,40,30)

what is average number of minutes my students can still listen to me?

mean(minutes)

[1] 33.11765

visualize number of minutes

hist(minutes)