TM 5-6675-323-14
Keystrokes
Display
6.0000
Correct y value is entered.
8.
x value is entered again.
N u m b e r of entries is again
3.0000
three.
(3) Mean. Pressing
c o m p u t e s the arithmetic mean (average) of x and y values
accumulated in registers R.1 and R.3 respectively.
Pressing
causes the following operations to be performed.
The contents of the stack registers are lifted just as they are when
pressing
The mean of the x values
is calculated using data accumulated in
registers
RI
and R.0 (n).
T h e resulting value for x appears in displayed X-
register.
T h e mean of y values
is calculated using data accumulated in
R.3 and
R.0.
(n).
registers
The resulting value for y is available in Y-register of stack.
Below is a chart of daily high and low temperatures for a winter
Example:
week.
To find average high and low temperatures for week selected, press:
.
Mon
Thurs
Fri
Sat
Sun
Tues
Wed
High
6
11
14
12
5
-2
-9
-24
-29
-17
-22
Low
-9
-35
-15
Keystrokes
Display
Statistical registers
0.0000
cleared. (Display shown
a s s u m e s no results remain
from previous calculations.)
22.
N u m b e r of data pairs (n) is
1.0000
now 1.
17.
N u m b e r of data pairs (n) is
2.0000
now 2.
15.
13-30
