7.5 Solutions

Solution to Exercise 7.4.2:

## `geom_smooth()` using formula 'y ~ x'

Solution to Exercise 7.4.3:

Solution to Exercise 7.4.4:

## Warning: Removed 12 rows containing non-finite values (stat_smooth).
## Warning: Removed 12 rows containing missing values (geom_point).

## Note: dependent includes missing data. These are dropped.
## Note: dependent includes missing data. These are dropped.