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.

mia khalifa

step-by-step explanation:

they would have to work 32 hours.

look at photo

one way is to plot 2 points and connect them which is what the answer choices seem to be doing

it seems to be using the y intercept and the slope

y=mx+b, m=slope, b=y-intercept (where the line hits the y axis)

slope=rise/run

y-intercept is where the line croses the y axis which is the y value where x=0

you seem to have given the wrong slope (you didn't put a number in front of te x, it should be 2/3 or 3/2 looking at the answer options)

y=? x-1

m=? because of your fault

b=-1

so it has a slope of ? and y intercept of -1, meaning it pases through (0,-1)

so draw point (0,-1) (so answer is one of the first 2 option)

if slope is 2/3, then go up 2 and right 3 then draw line through those 2 points

if slope is 3/2, then go up 3 and right 2 then draw line through those 2 points