Texas Instruments TI Programmable 57 User Manual

EEE
LINEAR
REGRESSION
EEE
Press
[inv] gi
5 ft] 10 A
13 &#) 30 tes
8 Gt] 30 RA) 3.
10 ft) 40 4.
15 Get] 60 5.
20 (t) 50 6.
4 f=] 20 RA) 7.
16 [zt] 60 8.
18
Get)
50
9.
6
[zt]
20
10.
0
2.6837607
1
6.1367521
2
0.7497339
0.8658717
9
3
30.290598
75
4
25.659236
DispLay/CoMMENTS
Clear memories and to get started.
Then enter your data.*
Note: your calculator
keeps count of each
data point you enter.
You've entered your 10
data points.
To find the slope
=m
To
find
the
“y”
intercept
To
find
the
correlation
factor
= fy
=r Thereisa fairly good
correlation
—
the
r
value
is
reasonably
close
to
+
1.
What
sales
performance
would
a
test
score
of
9
predict?
Prediction:
about
a
30%
sales
performance
above
goal.
What
test
score
would
indicate
a
75%
above
goal
sales
performance
record?
An
employee
with
a
score
of
about
26
should
achieve
a
75%
above
goal
sales
rating.
*Note:
If
you
make
a
mistake
entering
any
data
point,
you
can
remove
the
bad
point
by
re-entering
it
following
this
sequence:
re-enter
“x”
value,
press
1].
Then
re-enter
y
value
and
press
[18]
.
Then
proceed
with
corréct
data
points
as
shown
above.

Texas Instruments TI Programmable 57 Specifications

General

Brand	Texas Instruments
Model	TI Programmable 57
Category	Calculator
Language	English