HP 35s Scientific Calculator User Manual
Page 255
16-9
13. For a new case, go to step 2.
Variables Used:
Example 1:
Fit a straight line to the data below. Make an intentional error when keying in the
third data pair and correct it with the undo routine. Also, estimate y for an x value
of 37. Estimate x for a y value of 101.
B
Regression coefficient (y–intercept of a straight line); also
used for scratch.
M
Regression coefficient (slope of a straight line).
R
Correlation coefficient; also used for scratch.
X
The x–value of a data pair when entering data; the
hypothetical x when projecting ; or (x–estimate)
when given a hypothetical y.
Y
The y–value of a data pair when entering data; the
hypothetical y when projecting ; or (y–estimate)
when given a hypothetical x.
Statistics registers
Statistical accumulation and computation.
X
40.5
38.6
37.9
36.2
35.1
34.6
Y
104.5
102
100
97.5
95.5
94
Keys:
(In RPN mode)
Display:
Description:
S
Starts straight–line routine.
value
Enters x–value of data pair.
yˆ
xˆ
xˆ
yˆ