Drag each scenario to the correct location on the table. Classify the given scenarios as an observational study, an experiment, or a sample survey.

Scenario A: Counties in eastern Iowa that received either an above typical or below typical rainfall in a given year are compared in terms of corn production.

Scenario B: Eight students were chosen at random from the cafeteria and asked if their favorite sport was soccer.

Scenario C: To determine which drug is most effective in treating the common cold, drug A or drug B, cold patients were randomly given one of the two drugs and the results were compared.

Scenario D: To determine which hair growth treatment was most effective in regrowing hair, GrowHair or ReGain, participants were assigned a treatment to determine which showed the most new hair growth.

Scenario E: Students who were taught reading by two different methods are compared in terms of their reading standardized test scores.

Scenario F: Ten employees are randomly selected and asked whether they would be in favor of a new management position in their department.

answers:
observational: scenario a and scenario e
experiment:scenario c and scenario d
sample: scenario b and scenario f