Answer:
c. Observational studies have both independent and dependent variables.
d. Observational studies can be used to test hypothesis.
Explanation:
Observational studies are ones in which a researcher makes observations about his thoughts and views. He observes the risk and other effects before actual test takes place. This is usually the initial phase of research where observations are made for suitability of certain things that are to be researched. There is initial feasibility test conducted to identify whether the further research process is beneficial or not.
Answer:
B. Disruptive innovation
Explanation:
A disruptive innovation is an innovation whose application affects how a market or industry functions significantly, it requires a major change in the way consumers live and creates a new market and value chain. Examples of disruptive innovation are; the internet, radio, smart phones, steel mini mills, etc.
Like first European groups, the Irish, Scottish, French, and English.
You have to say what country you are in
Answer:
I got you
Explanation:
to give brainiest you first need two answers. after you have 2 answers there should be crown either on the top of the answers of on the bottom by the ratings. after you find the crowns you click on them and boom you gave brainiest.
