What is different of quantitative observation to qualitative observation?

Answer:
A qualitative observation merely indicates that the subject posesses a certain quality, for example "this water is salty". A quantitative observation takes a measurement of the quality, for example "this salty water has a concentration of 10% salt".
First answer by Spexx. Last edit by Spexx. Contributor trust: 39 [recommend contributor recommended]. Question popularity: 1 [recommend question].