EDA for vocabulary score vs. social class

Before we conduct inference, we should take a look at the distributions of vocabulary scores across the levels of (self identified) social class.

This exercise is part of the course

Inference for Numerical Data in R

Using gss, plot the distribution of vocabulary scores, wordsum.
Make this a histogram, using an appropriate binwidth.
Facet this histogram, wrapping by social class level.
Look at the plot! Compare the distributions of vocabulary scores across the levels of (self identified) social class.

Have a go at this exercise by completing this sample code.

# Using gss, plot wordsum
ggplot(___, mapping = ___) +
  # Add a histogram layer
  ___ +
  # Facet by class
  facet_wrap(___)