Checking for class imbalance

The 2022 Kaggle Survey captures information about data scientists' backgrounds, preferred technologies, and techniques. It is seen as an accurate view of what is happening in data science based on the volume and profile of responders.

Having looked at the job titles and categorized to align with our salaries DataFrame, you can see the following proportion of job categories in the Kaggle survey:

Thinking of the Kaggle survey results as the population, your task is to find out whether the salaries DataFrame is representative by comparing the relative frequency of job categories.