Statistical Calculations 119
Summary of Statistical Calculations
The
STAT
annunciator indicates that a statistical calculation was performed. Some functions
return two values. In this instance, the
X
annunciator is displayed along with
STAT
. Press
\«
to see the second value. In this case, the
X
annunciator changes to a
Y
, indicating
the second value is being displayed.
Table 12-6 Statistical calculations that return two values
Keys
Description
\«
Displays:
\k
Arithmetic mean (average) of the
x
-
values.
Mean (average) of the
y
-
values if
you entered
y
-
data.
\h
Sample standard deviation of the
x
-
values.
NOTE: The sample standard deviation
assumes that the data is a sampling of a
larger, complete set of data. The population
standard deviation assumes that the data
constitutes the entire population.
Sample standard deviation of the
y
-
values if you entered
y-
data.
NOTE: The sample standard
deviation assumes that the data is a
sampling of a larger, complete set of
data. The population standard
deviation assumes that the data
constitutes the entire population.
\e
Population standard deviation of the
x
-values.
NOTE: The sample standard deviation
assumes that the data is a sampling of a
larger, complete set of data. The population
standard deviation assumes that the data
constitutes the entire population.
Population standard deviation of the
y-
values if you entered
y-
data.
NOTE: The sample standard
deviation assumes that the data is a
sampling of a larger, complete set of
data. The population standard
deviation assumes that the data
constitutes the entire population.
y
-value
\Z
Estimate of
x
for a given value of
y
.
Correlation coefficient.
NOTE: The correlation coefficient is
a number in the range -1 t1
that measures how closely the data
fits the calculated line. A value of +1
indicates a perfect positive
correlation, and -1 indicates a
perfect negative correlation. A value
close to zero indicates the line is a
poor fit.
x
-value
\W
Estimate of
y
for a given value of
x
.
Coefficient
m
of the current
regression.
\T
Mean of the
x
-
values weighted by the
y
-
values.
Coefficient
b
of the current
regression.
Содержание 10bII+
Страница 1: ...i HP 10bII Financial Calculator User s Guide HP Part Number NW239 90001 Edition 1 May 2010 ...
Страница 3: ...iii HP 10bII Financial Calculator ...
Страница 30: ...At a Glance 22 ...
Страница 144: ...Statistical Calculations 136 ...
Страница 183: ...Warranty Regulatory and Contact Information 9 ...
Страница 184: ...Warranty Regulatory and Contact Information 10 ...