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Merge branch 'master' of github.com:hadley/r4ds

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hadley
2016-06-20 08:31:23 -05:00
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model-basics.Rmd
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@@ -156,7 +156,7 @@ summary(h)
### Exercises ### Exercises
1. What variables in `heights` do you expect to be most highly correlated with 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 1. Correlation only summarises the linear relationship between two continuous
variables. There are some famous drawbacks to the correlation. What variables. There are some famous drawbacks to the correlation. What