FREE graduate classes this spring!

[Hotdogman1]

Am I mathing this correctly if I was only looking at the grad school courses? 

For M.S. in Agricultural Sciences, M.S. in Agricultural Leadership, Education and Communications
3 Credit hour (Free via 2025 winter Mini) + 3 Courses (Estimated $2709 for out of state, $1485 for in state) + 6 Credit hours (free via 2025 winter additional course) 
= $225.75 per credit hour for out of state and $123.75 for in state.

For M.S. in Business Analytics and M.S. in Marketing & Marketing Analytics
3 Credit hour (Free via 2025 winter Mini) + 6 Courses (Estimated $4,988 for out of state, $2,540 for in state) + 3 Credit hours (free via 2025 winter additional course) 
= $415.67 per credit hour for out of state and $211.67 for in state.

For M.S. in Computer Science
3 Credit hour (Free via 2025 winter Mini) + 6 Courses (Estimated $5,026 for out of state, $2,578 for in state) + 3 Credit hours (free via 2025 winter additional course) 
= $418.83 per credit hour for out of state and $214.83 for in state.
I don't think these masters have a free course in 2025 Winter mini so I think the CS tuition would apply: M.S. in Artificial Intelligence, M.S. in Biological Sciences, M.S. in Chemistry, M.S. in Technology Management, M.S. in Mathematics, or M.S./M.A. in Physics.

The normal out of state graduate credit hour seems to be around ~$800 per credit hour (why is there not a set cost per credit hour?). This would make the cost to complete the other 18 credits an additional ~$14k+ depending on the masters... That is much more pricey than what I expected.
https://www.tamuc.edu/grad/cost/