Question

The graph below plots the values of y for different values of x:
Which correlation coefficient best matches the data plotted on the graph?

Answer 1

-0.5
0
0.25
0.90

Answer 2

its pretty well correlated isnt it?

Answer 3

i guess im not really sure

Answer 4

does it look like a nice straight line? or is everything scattered everywhere willy nilly?

Answer 5

yeah its constant

Answer 6

so it wouldnt be negative

Answer 7

its rising upwards, so it wont be negative

and since its all nice and almost in line, the correlation between x and y is almost 1 to 1

Answer 8

so it would be D

Answer 9

let me do a little review for that, but as a first thought id lean towards D yes

Answer 10

thank you :)

Answer 11

http://stattrek.com/statistics/correlation.aspx

yeah, the stronger or more apparent the line is, the bigger the correlation coeff.

Answer 12

we have a pretty well visually looking line here, so it should be close to 1