If the correlation is about -.85 .... is it a 'strong correlation' or not and how do you know?
2006-10-07 07:05:02 · 6 answers · asked by Kim 2 in Science & Mathematics ➔ Mathematics
Let r be the correlation. The strength is determined by its absolute value.
|r| <= 0.3 is weak
0.3 < |r| <= 0.5 is moderate
0.5 < |r| <= 0.7 is moderately strong
0.7 < |r| <= 0.9 is strong
0.9 < |r| is very strong
2006-10-07 07:08:06 · answer #1 · answered by James L 5 · 0⤊ 0⤋
Yes -.85 would be a considerably strong correlation. The way that you know is completely by number.
No matter whether the number is negative or postive the higher the number the stronger the correlation.
For instance...
If you have +65 and -73 the -73 its still the stronger correlation because the number is higher. Its as easy as that!
Hope I helped!
2006-10-07 07:14:43 · answer #2 · answered by Sarah 2 · 1⤊ 0⤋
Correlations range between -1 and +1. Weak correlations are close to 0. Strong correlations are close to 1 or -1. You have a strong negative correlation meaning that as one variable increases, the other decreases.
2006-10-07 07:08:21 · answer #3 · answered by schvan 2 · 1⤊ 0⤋
It depends on entirely on context...consider some examples:
You're interested in the relationship between the selling price of some foreign exchange and the buying price of foreign exchange. Here, we expect the two figures to be closely, but not perfectly related... so you would say 0.85 is really low.
If you were looking at the relationship between consumer considence and the share price of a a vehichle manufacturer then 0.85 would be considered a very high correlation.
Get it?
2006-10-07 07:25:09 · answer #4 · answered by Nic 1 · 0⤊ 0⤋
a correlation coefficient of 1 would be perfect + correlation. -1 would be perfect negative correlation.
0.85 means a positive correlation of 85%.
2006-10-07 07:10:45 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Ask your mom
2006-10-07 07:06:20 · answer #6 · answered by Anonymous · 0⤊ 2⤋