A follow-up question to this as I feel it is very broad. For example, consider this link displaying the salaries at a particular department in a public school in US. I see very wide variations within ...
What are the 25th-75th percentile ranges for the annual income for graduate students in the United States?
And are there differences in average income between different types of fields, or different types of schools? The diagram below says that the average income for grad students is $17k/year. But I'm ...