Which of the following are true about a model Check all that

Which of the following are true about a model? (Check all that apply.)

A. The outcomes of the model are used in comparison with the actual data.
B. It makes hypotheses on empirical evidence.
C. It is not always the exact replica of the data.
D. It is a simplified description of a theory.

Solution

Ans. (A) No, instead a model is framed with the help of the actual or population data. A statistician takes sample from the population and then studies it and form a model.

(B) Yes, We can make hypothesis based upon the empirical evidence that we found from the model itself.

(C) Yes, It is not always the exact replica of the data, because it depends upon the size of the sample taken out of population. However, it cannot be the exact replica of the data but somehow it corresponds to its true popluation value (approximately).

(D) True, it is just a description of long theory in very constructive manner.