7. A data set is given below.(a) choose scatter diagram. Comment on the type of relation that appears to exist between x and y.(b) Given that

x=3.8333,

sx=2.3166,

y=3.6667,

sy=1.7443,

and

r=0.9470,

determine the least-squares regression line.(c) Graph the least-squares regression line on the scatter diagram drawn in part (a).

x	1	1	4	5	6	6
y	4.9	6.2	4.3	2.7	1.8	2.1

(c) Choose the correct graph below. O A. O B. O C. OD. Ay + Ay Ay + 7- X X X X\fData table Poor Fair Good Excellent Not too happy 694 1,376 1,629 732 Pretty happy 940 3,817 9,642 5,185 Very happy 350 1,372 4,520 5,095