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Exercise

PMF of age

Do people tend to gain weight as they get older? We can answer this question by visualizing the relationship between weight and age. But before we make a scatter plot, it is a good idea to visualize distributions one variable at a time. Here, you'll visualize age using a bar chart first. Recall that all PMF objects have a .bar() method to make a bar chart.

The BRFSS dataset includes a variable, 'AGE' (note the capitalization!), which represents each respondent's age. To protect respondents' privacy, ages are rounded off into 5-year bins. 'AGE' contains the midpoint of the bins.

Instructions

100 XP
  • Extract the variable 'AGE' from the DataFrame brfss and assign it to age.
  • Get the PMF of age and plot it as a bar chart.