The following are monthly percentage price changes for four market indexes. your answers to five decimal places. Expected return (S\&P 500 and Russell 2000): Standard deviation (S\&P 500 and Russell 2000): Expected return (S\&P 500 and Nikkei): Standard deviation (S\&P 500 and Nikkei): Since S\&P 500 and Russell 2000 have a strong - -Select- V correlation, meaningful reduction in risk Since S\&P 500 and Nikkei have a strong correlation, meaningful reduction in risk if they are combined. if they are combined