The correlation coefficient has to do with how well the points line up. If they are all on a line with positive slope, the correlation coefficient is 1. If that line has negative slope, the correlation coefficient is -1.
When the points are not on a line, the magnitude of the correlation coefficient is related to how "scattered" the points are. Completely random points that lie on no discernible line have a correlation coefficient of 0.
The given points lie near a line with positive slope, so the correlation coefficient is near 1. The most appropriate choice here is r = 1.
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The computed value of the correlation coefficient for this data is 0.968.
Answer:
x = -8
Step-by-step explanation:
Set the function f(x)=9-2x equal to 25, and then solve the resulting equation for x:
9 - 2x = 25.
Isolate the -2x term by subracting 9 from both sides:
-2x = 16
Finally, solve for x by dividing both sides by -2:
x = -16/2, or x = -8
1+8n=13+6n
1+8n=13-6n
-6n
1+2n=13
-1 -1
2n=12
2n divided by 2... 12 divided by 2 = 6... n=6
9-t=t+3
Subtract t on both sides
-2t=-6
Divide by -2 to leave the variable by itself
t=3
Here, first we need to calculate the slope of the line,
Here, Coordinates = (-6, 2) (-1, -4)
m = y2 - y1 / x2-x1
m = 2 + 4 / -6 + 1
m = 6/-5
m = -6/5
Now, Take first coordinate: y - 2 = -6/5 (x + 6)
Second coordinate: y + 4 = -6/5 (x + 1)
In short, Your Answers would be Option C & D
Hope this helps!
