Question

@ganeshie8

Answer 1

I don't know how to find the r-value, can you teach me? please?

Answer 2

options ?

Answer 3

0.64
-0.64
0.93
-0.93

Answer 4

but I would like to know how to solve rather than just the answer please

Answer 5

Look at the given scatterplot

It seems the variable Y is increasing as X is increasing, yes ?

Answer 6

yes

Answer 7

therefore, the correlation coefficient has to be "positive"

Answer 8

Based on that info which options can you eliminate ?

Answer 9

the negative values

Answer 10

Good. Look at the plot agian, is the correlation too much strong ?

Answer 11

or the data values are spread around a bit ?

Answer 12

yes it is spread around but its not strong

Answer 13

So it cannot be 0.93

Answer 14

wow that was easier than I thought thank you :)

Answer 15

np :)