Data

Measurements, Units

Units

Base units are liter, kilo, cm, etc.

There is also King Henry Died By Drinking Chocolate Milk. That stands for Kilo, Hecto, Deka, Base, Deci, Cem, Millo.

Base is the main unit.

Precision v. Accuracy

Qualitative is measuring something by quality.

Quantitative is measuring something by quantity.

Precision is being exact or accurate.

Accuracy is being correct or precise.