summarization lab

[carriewright11]

1.3 description was a bit confusing for people in terms of the part about the census tracks - maybe could just say what was the largest population? - they got confused about the single row phrasing

[carriewright11]

also maybe good to add a hint to 1.4 about having unique column names for the summarize table - some people were using the same name and therefore only seeing one column in the output (and reminding them that it is whatever they want to call it)

[carriewright11]

also maybe good to add a hint to 1.4 about having unique column names for the summarize table - some people were using the same name and therefore only seeing one column in the output (and reminding them that it is whatever they want to call it)

although it was a cool lesson - so maybe could add a question about trying it without unique names and have them observe what happens and why