E-20
     A11(STAT) 5(Reg) 3(r) = 
   
      A11(STAT) 1(Type) 4(In X) 
      A11(STAT) 5(Reg) 3(r) = 
   
     A11(STAT) 5(Reg) 1(A) = 
   
     A11(STAT) 5(Reg) 2(B) = 
    
    Results:  Linear Regression Correlation Coefficient: 0.923 
                Logarithmic Regression Correlation Coefficient: 0.998
                Logarithmic Regression Formula:  
y  = –3857.984 + 2357.532ln x 
  
   
  Calculating Estimated Values
  Based on the regression formula obtained by paired-variable statistical 
calculation, the estimated value of  
y  can be calculated for a given  x -value. 
The corresponding  
x -value (two values,  x  
1 
 and  x  
2 
, in the case of quadratic 
regression) also can be calculated for a value of  
y  in the regression formula. 
    
 To determine the estimate value for  y  when  x  = 160 in the 
     regression formula produced by logarithmic regression of the data 
     in 
3
. Specify Fix 3 for the result. (Perform the following operation 
     after completing the operations in 
3
.)
     A 160  11(STAT) 5(Reg) 5( n) = 
   
   Result:     8106.898
  
   Important:   Regression coefficient, correlation coefficient, and estimated 
value calculations can take considerable time when there are a large number 
of data items.
Creating a Number Table from Two 
Functions (TABLE)  
  TABLE generates a number table based on one or two functions. You can 
use the function 
f(x) or the two functions f(x) and g(x). See “Configuring the 
Calculator Setup” for more information.
  Perform the following steps to generate a number table. 
  
  1. Press N3(TABLE) to enter the TABLE Mode.
    2. Use the X variable to input two functions, one in the format 
f(x) and the 
other in the format 
g(x).
  • Be sure to input the X variable ( S)(X)) when generating a number 
table. Any variable other than X is handled as a constant.
• If you are using a single function, input a function in the format 
f(x) 
only.
  • Pol and Rec cannot be input in the function. 
  3. In response to the prompts that appear, input the values you want to use, 
pressing  = after each one. 
  For this prompt:   Input this:   
 Start? 
 Input the lower limit of X (Default = 1).  
 End? 
 Input the upper limit of X (Default = 5). 
   Note:  Make sure that the End value is always 
greater than the Start value.  
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