Correlation coefficients range from -1 to +1, indicating the strength of relationships between variables. Investors use correlation coefficients for portfolio diversification to reduce risk.

Once the ranks for the two variables are found, we apply the formula for the correlation to the ranks as follows: Both Spearman’s rank and Pearson’s correlation tests share the purpose of assessing ...

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In this paper, a study of the behavior and correlation between High Possible Frequency (HPF) and Optimum Maximum Usable Frequency (OPMUF) parameters for the communication links distributed over Middle ...