A perfect positive correlation would be exactly 1; 1.00 means "0.995 or higher", which is quite strong indeed.
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A coefficient of zero means there is no correlation between two variables. A coefficient of -1 indicates strong negative correlation, while +1 suggests strong positive correlation.
No, it indicates an extremely strong positive correlation.
It tells you how strong and what type of correlations two random variables or data values have. The coefficient is between -1 and 1. The value of 0 means no correlation, while -1 is a strong negative correlation and 1 is a strong positive correlation. Often a scatter plot is used to visualize this.
correlation which can be strong or weak
Yes.