(variable name or description) (categorical/quantitative) The response variable is (variable name or description) (categorical/quantitative) c. Is this an observational study, a randomized comparative experiment, or a matched pairs experiment? Justify your answer. d. Was the sample selected at random from the population? (yeso) e. Was the explanatory variable randomly assigned? (yeso) f. Can we generalize the result to the population of all people aged 18 to 31? (yeso) Justify your answer: g. Can we establish causality from this study? (yeso) Justify your