Data collected on the depth of the Nile River and the speed at which the river travels are given in the table: Depth Speed (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. (4 points)
Question 3 options:

1)

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

2)

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

3)

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

4)

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