What are some differences between observational studies and experiments and what are issues that may arise during data collection or interpretation?

Observational studies are those in which the researcher does not influence the phenomenon he is studying. As the name states, he simply observes as the phenomenon takes place. On the other hand, experiments require the researcher to interfere with the phenomenon, or cause it, in order to study it.

An issue that can arise from observational studies is that, due to the lack of control that a researcher has, it is not always easy to determine the conditions that are necessary for that phenomenon to take place. In the case of experimental studies, one of the problems is that experiments are usually reduced to the natural world, as experimenting in the human world raises many ethical problems.

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.

step-by-step explanation:

this is not a question