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Fix a typo: Should be `purrr` instead of `purr`

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jjchern 2016-06-17 23:51:44 -05:00 committed by GitHub
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model-basics.Rmd
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@ -155,7 +155,7 @@ summary(h)
### Exercises
1. What variables in `heights` do you expect to be most highly correlated with
income? Use `cor()` plus `purr::map_dbl()` to check your guesses.
income? Use `cor()` plus `purrr::map_dbl()` to check your guesses.
1. Correlation only summarises the linear relationship between two continuous
variables. There are some famous drawbacks to the correlation. What