Option(d) - 0.85 is the correct answer.
The correlation coefficients of the strongest relationship between the two variables is - 0.85.
The correlation coefficient, abbreviated as r, expresses the direction and strength of a relationship between two variables. When the r value is close to +1 or -1, it indicates that the two variables have a stronger linear relationship.
In addition, based on the examples provided. A correlation coefficient of -1 or 1 indicates the strongest linear relationship. A correlation coefficient of zero indicates the weakest linear relationship. A positive correlation indicates that as one variable grows, the other tends to grow as well.
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I understand that the question you are looking for is:
" Which of the following correlation coefficients represents the strongest relationship between two variables?
a) +0.30
b) +0.75
c) +1.3
d) -0.85
e) -0.05"