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fx-82MS      fx-82TL


S-SUM

On a Casio calculator you can recall statistical sums

       1

 


SD mode

In standard deviation (SD mode) you can show

       1  ∑x2 ∑x  n
  1    2    3  
 

 1  ∑x2   Sum of squares of values

 2  ∑x      Sum of values

 3  n   Number of observations

 


REG mode

In linear regression calculations (REG mode) you can show

       1  ∑x2  ∑x  n  
  1      2    3  
 

 1  ∑x2   Sum of squares of values

 2  ∑x       Sum of values

 3  n    Number of observations

y2 ∑y  ∑xy
  1     2     3

 1  y2    Sum of squares of values

 2  y        Sum of values

 3  xy    Number of data

 


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