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Σ Σ Σ Σ Σ x y
Sum of (x x y) for all x-y pairs
a
Linear regression y-intercept
b
Linear regression slope
r
Correlation coefficient
x '
Predicted x values given a, b, and a y values
y '
Predicted y value given a, b, and x value.
(Note) : If an error message appears in the display under STATVAR menu,
just pressing [ ] or [ ] can continue viewing next statistical vari-
able value.
To view or change data :
1.
Press [ DATA ].
2.
Press [ ] to scroll through the data you have entered.
3.
To change an entry, display it and enter the new data. The new data
you enter overwrites the old entry. Press [ ] or [ ENTER ] to save the
change.
(Note) : Even you exit STAT mode, all data in 1 - VAR and 2 - VAR mode
are still retained unless you clear all data by selecting
CLR - DATA mode.
4
Mode 2 - Base-n
4 - 1
Bases conversions
• The number system (10, 16, 2 , 8 ) is set by pressing [ 2nd ] [ dhbo ] to display
the menu, making one of the items underlined followed [ ENTER ]. A
corresponding symbol - "d ", "h", "b", "o" appears on the display. (The
default setting is d : decimal base). See Example 39.
(Note) : The total range of numbers handled in this mode is 0, 1, 2, 3, 4, 5,
6, 7, 8, 9, A, B, C, D, E, F. If values not valid for the particular number
system are used, attach the corresponding designator (d, h, b, o),
or an error message will appear.
Binary base ( b ) : 0, 1
Octal base ( o ) : 0, 1, 2, 3, 4, 5, 6, 7
Decimal base ( d ) : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Hexadecimal base ( h ) : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F
• Pressing [
] can use block function to display a result in octal or binary
base which exceeds 8 digits. The system is designed to display up to 4
blocks. See Example 40.
E - 15
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