Quantitative data is data that describes whereas (how much) quantitative data defines.
Data that approximates or characterizes but does not measure the attributes, characteristics, properties, etc.
Experiments, investigations, or tests carried out to acquire data first-hand, rather than being gathered from published sources.
Secondary research is research based on secondary data. This is basically research on the web.
Primary research is very useful because it give an insight o what customers want, establish the best price and sales level, decide whether to brand or advertise something and maybe have some customer feedback, though the problem with that is, it will be expensive and people might give false feedback out of being nice or embarrassed to say otherwise.
Secondary research advantages are that it is very cheap or which may only cost the time it takes in which you may find something useful on the web, the research was already carried out by others so it is quicker to gain information. The information maybe rubbish though, or be old and not apply in the modern world.


