statistics - descriptive & quantitative research

[improvingMYenglish]

descriptive research: “refers to investigation which utilities already existing data or non-experimental research with a preconceived hypothesis"

quantitative research “any investigative procedures used to describe in numerical terms a setting and the things going on in it”

 

[improvingMYenglish]

hello,
I've these definitions and I need to rephrase it and I don't know how. can you help me to put in in other words.

descriptive research: “refers to investigation which utilities already existing data or non-experimental research with a preconceived hypothesis"

quantitative research “any investigative procedures used to describe in numerical terms a setting and the things going on in it”