After the of Archduke Ferdinand, many countries joined WWI because of that had been made. These countries had a mutual agreement to defend one another against attack

Match the item to the definition: indirect correlation, correlational research, correlational research, covary, pearson correlation coefficient, pearson correlation coefficient, direct correlation a. used to describe the relationship between two or more naturally occurring variables b. determines whether scores on the two variables covary c. whether two variables vary or change together d. denoted by the symbol "r" e. provides information about the sign (direction) and magnitude(strength) of the linear relationship. f. when the correlation is positiveg. when the correlation is negative

What is the best definition of economic data?

Ineed your opinion for the question of what is your thoughts on the use of medical marijuana? (social experiment)