noun, plural ap·pa·rat·us, ap·pa·rat·us·es. a group or combination of instruments, machinery, tools, materials, etc., having a particular function or intended for a specific use: Our town has excellent fire-fighting apparatus. any complex instrument or mechanism for a particular purpose.
Quantitative data are measures of values or counts and are expressed as numbers. The best tool out of all shown to deal with a large amount of numerical data is a computer
