Matt makes gifts for his family in preparation for their return. Why does Matt believe they will return?

The photo shows a shopping mall in beijing, china. inside, there are food sites selling pizza and hamburgers and closing stores selling blue jeans and basketball sneakers. these items have become popular around the world because

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

Which chinese invention is used to measur the strength of earthquakeswhich chinese invention is used to measure the strength of earthquakes