Question

The graph below plots the values of y for different values of x:

Plot the ordered pairs 1, 3 and 2, 4 and 3, 9 and 4, 7 and 5, 2 and 6,18

Which correlation coefficient best matches the data plotted on the graph?

Answer 1

0.5
0.8
0.9
1.0

Answer 2

@AliceCullen plz?

Answer 3

@Hero @IrishBoy123

Answer 4

its 1.0, right?

Answer 5

the idea is to draw a line through all of the points (as best as you can)
if the points all fall on the line, you have perfect correlation i.e. 1
as you can see, you can't draw a line through your points.

Answer 6

there is a complicated algorithm to compute the correlation
but based on the dots being all over the place I would go with a small number (correlations are between -1 and 1)