Q Lumen OHM What's New X LaGuardia Community College - X > C ohm.lumenlearning.com/assess2/?cid=61282&aid=4492561#/skip/3 To earn full credit for this question, use your own sheet of paper to solve the problem, showing al your work. A regression was run to determine if there is a relationship between the happiness index (y) expectancy in years of a given country (x). The results of the regression were: y=a+bx a=-0.22 b=0.087 (a) Write the equation of the Least Squares Regression line of the form y= (b) Which is a possible value for the correlation coefficient, r? O-0.815 0 1.946 O-1.946 O0.815 (c) If a country increases its life expectancy, the happiness index will O decrease O increase (d) If the life expectancy is increased by 3 years in a certain country, how much will the happ indov change) Bound to twin dorimal places