0.89 is the strongest correlation. Hence option D is correct.
It is a statistical value that describing the degree to which two variables travel in coordination with each another.
Since , +1 is the strongest correlation, here the value nearby is also also have stronger correlation. This implies 0.89 has the strongest correlation among 0.21, -0.92, 0.44. 0.89.
Thus, 0.89 is the strongest correlation.
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