What can master statues tell about how developed a society is ?

answer; i believe the correct answer is (a) the correlation between the cause variable and outcome variable is zero;

well, i can't read it so i'll ask you questions about it : )

if you were a reader and you read the introduction, would you want to read more?

does it start with a question? if so, is it something you would want to read about?

and ask any friends or family for their opinion : )