LEXIBOOK SC460 Owner's Manual page 68

E.g.:
We wish to input the following data: 10/5, 20/8, 20/8, 30/11, 30/11, 30/11, 60
ln2/40ln3, 45/13 (we note 10/5 as the first input thus x
• During the data input operation, as long as you have not pressed [DT], use [AC] :
30 [AC]
30 [,] 11
30 [,] 11 [SHIFT][;] [AC]
• If, during data input, you wish to delete the last value entered and for which
you have pressed [DT], use [SHIFT][CL] :
Just after 45 [,] 13 [DT], [SHIFT][CL] deletes the input 45/13.
• To delete a value input beforehand, you must enter the value followed by
[SHIFT][CL] :
10 [,] 5 [SHIFT][CL]
20 [,] 8 [;] 2 [SHIFT][CL]
30 [,] 11 [SHIFT][CL]
60ln2 [,] 40ln 3 [DT] [SHIFT][CL] deletes the entry from the calculated value.
Calculating the average and standard deviation
x [SHIFT] [S-VAR]1
y [SHIFT] [S-VAR] [ ]1
∑x  [SHIFT] [S-SUM] 1
∑y  [SHIFT] [S-SUM] [ ]1
∑x [SHIFT] [S-SUM] 2
∑y [SHIFT] [S-SUM] [ ]2
∑xy [SHIFT] [S-SUM] [ ]3
68
SC460IM0237.indb 68
deletes the input 10/5.
deletes the two data entries having a
value of 20/8.
deletes one of the three 30/11 entries.
Displays the average value of x.
Displays the average value of y.
Calculates the sum ∑x
squared.
Calculates the sum ∑y
squared.
Displays the sum of the data entered ∑x.
Displays the sum of the data entered ∑y.
Displays the sum of the data entered ∑xy.
Copyright © Lexibook 007
=10 and y =5)
1 1
 of the data entered
 of the data entered
20/6/07 15:28:11