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Exercise

Mutate, filter, and arrange

In this exercise, you'll put together everything you've learned in this chapter (select(), mutate(), filter() and arrange()), to find the counties with the highest proportion of men.

Instructions

100 XP
  • Select the state, county, and population columns, and add a proportion_men column with the fractional male population using a single verb.
  • Filter for counties with a population of at least ten thousand (10000).
  • Arrange counties in descending order of their proportion of men.