Question

Multiple CHoice:

Which question asks about a causal relationship?

	A.	What amount of exercise is optimal for adolescents?
	B.	Do men exercise more than women?
	C.	Do people who exercise have better nutritional habits?
	D.	Does rigorous exercise reduce the risk of obesity?

Answer 1

Answer is D i.e., Does rigorous exercise reduce the risk of obesity?. Because here rigorous exercise is the cause and reduction in obsesity was the effect. Rigorous exercise has influence on reduction in obesity here.

A causal relationship was exists between two events if the occurence of the first causes the other. The first event is called the cause and the second event is called the effect. In a causal relationship it is possible to conclude that one variable has a direct influence on the other. If two variables are causally related , it is possible to conclude that cahnges to the explanatory variable x, will have a direct impact on Y.

Example: A scientist in a dairy factory tries four different packaging materials for blocks of cheese and measures their shelf life. The packaging material might influence the shelf life, but the shlef life cannot influence the packaging material used. The relationship is therefore causal.