Data collected on the depth of the Nile River and the speed at which the river travels are given in the table: Depth | Ft/Sec
0.7 1.55
2 1.11
2.6 1.42
3.3 1.39
4.6 1.39
5.9 1.14
7.3 0.91
8.6 0.59
9.9 0.59
10.6 0.41
11.2 0.22
Find r2, and interpret the results.

0.88; The least-squares regression line, given by ŷ = 1.68 − 0.12x, is a good fit for the data.

−0.94; The least-squares regression line, given by ŷ = 1.68 − 0.12x, is a good fit for the data.

0.88; The least-squares regression line, given by ŷ = −0.12 + 1.68x, is not a good fit for the data.

−0.94; The least-squares regression line, given by ŷ = −0.12 + 1.68x, is not a good fit for the data.

Can someone also give an explanation of how they did it? I'm very confused about how to solve these kinds of problems and my teacher is not of much help