PEARSON function
    PEARSON(Numbers1,
    Numbers2) PEARSON(Numbers1;
    Numbers2)
  
  Numbers1
        { Number }
      
      The first set of values. This array must have the same size as the other array parameter.
Numbers2
        { Number }
      
      The second set of values. This array must have the same size as the other array parameter.
Returns
        Number
      
      The Pearson correlation coefficient of two sets of data.
Returns the Pearson correlation coefficient of two sets of data. PEARSON is equivalent to CORREL. RSQ returns the square of the Pearson correlation coefficient of two sets of data.