A quantitative observation is something that measures a quantity (number), such as the weight of length of an object. Quantitative observations have numbers, such as 3 pounds or 5 meters.
The opposite is a qualitative observation, such as something is round or that it is blue. There are no numbers involved, the thing is either round or it's not.
A Qualitative Observation is an observation that uses the five senses. sight, smell, hearing, touch, and taste. An example of this would be: "This tree has bright green leaves that have soft bumps on them."
The opposite is a quantitative observation, which is measured in numbers, such as the weight or length of an object. For example, 5 pounds or 100 inches. For instance "The stratosphere begins 40 kilometers above the surface of Earth."
to solve a problem.
to improve a situation.
To ensure that good and reliable data are collected