ll small business istrying to determine the effect of a social media marketing campaign on sales. The plot below shows the relationship between the social media advertising costs and sales revenue. The linear regression output is shown below. 131!\" . ___ . g ,m o i a . Regression Statistics g - _ . . ' Multiple :2 0.527615 . g I o _ I! . o 1. - " R Square 0.393901 5 ma ' . - ' Adjusted R Square 0.322254 :1; ' . '. Standard Error 22633.4? "' Observations 30 2m 15\"\" m 25\" Sadat madi. advarliaim can: {in dun-a) R = Ex: [3.654321 What is the correlation between advertising costs and sales revenue? Pick v correlation -m