Use this term in a sentence. â 1  The principle of regression theory is something that we all knew about and it was a theory we all agreed with. â 2  You should try and make sure you are prepared for the principle of regression and make the necessary adjustments before it stars.
Average Cost Of Inground Pool. Vinyl-lined pools can be $10,000 or more to build. Very large pools that have extras like heating or extra filtration can cost well over $50,000. An average pool owner looking to put in a relatively nice inground pool can expect to pay between $15,000 and $25,000.
Inground Pool Liner Cost Conclusion. If you add a quality liner with a quality installation, you are looking at an average cost of roughly $4000.00 for small to medium size pools. If you need to upgrade your pool bottom, your total average moves up to 5400.00. Of course 18 x 36 and 20 x 40 pools will cost more.