Given are five observations for two variables, x and y. xi 1 2 3 4 5yi 4 6 8 12 15the estimated regression equation for these data is yˆ = 0.6 + 2.8x. a.) compute sse, sst, and ssr using the following equations (to 1 decimal).a1.) sse =a2.) sst =a3.) ssr =b.)b1.)compute the coefficient of determination r2 (to 3 decimals).b2.)does this least squares line provide a good fit? c.)compute the sample correlation coefficient (to 4 decimals).

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations