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:
yes
Explanation:
I agree very much with that statement. very inspirational ❤
Your answer will be False, because papyrus is paper, which was back in the early times, and they used papyrus to carry food, but papyrus was not a fruit. According to this text, it says that "The ancient Egyptians used papyrus (which is paper) to make paper, baskets, sandals, mats, rope, blanket, etc." And that is why the answer is false.
Hope this helped!
Nate
Answer:
<u>There is no correlation between the type of car owned and the risk of being stolen</u>. Correlation is a term reserved for describing linear associations between quantitative variables. There is an association, not a correlation.
Explanation:
The type of car owned is a categorical variable not a quantitative variable.
