The average annual cost (tuition, fees, and room and board) at four-year

The average annual cost (tuition, fees, and room and board) at four-year public universities rose from $2550 in 1980 to $19,548 in 2015. Compare the increase in the cost of college to the increase in cost corresponding to the CPI.

Consumer Price Index. In Exercises, use the Consumer Price Index values from Table 2.2.