Statistical Functions
To access the statistical functions, make sure you are in
Statistics
mode; the title bar should end with
[stats]. If not, click
mode
and select
Statistics from the Number/Mode group. In statistics
mode, the bottom right hand button on the calculator is
data. To
input values for analysis, enter numbers and click
data after each
number is input. Repeat this process until you have entered all the data
values. If you press the
shift button on the calculator, some of
the number keys change to the statistics functions:
For example, to get the number of points entered, press 
; to get the mean of the data, press the 
button.
To clear the statistics memory, press shift and then press SAC
(Statistics All Clear) button (which was labelled AC before pressing shift).
- Data Input
To input values for analysis, enter numbers and click
data after
each number is input. Repeat this process until you have entered all the
data values.
- Statistics All
Clear
To clear the statistics memory, press the
shift button, followed
by
SAC (i.e. shifted
AC).
- Permutations
Computes the number of permutations nPr.
Example:
To compute the number of ways of arranging five objects chosen from
a population of ten:
1 0 shift
5 =
Result: 30240
Note: The calculator must be in statistics mode.
- Combinations
Computes the number of combinations nCr.
Example:
To compute the number of combinations of five objects chosen from a
population of ten (without regard to the order of choosing):
1 0 shift
5 =
Result: 252
Note: The calculator must be in statistics mode.
- Maximum
of data values
To obtain the maximum of all the values entered into the statistics memory,
press
shift then
max.
- Minimum
of data values
To obtain the minimum of all the values entered into the statistics memory,
press
shift then
min.
- Number of Data Points
To obtain the total number of values entered into statistics memory, press
shift
then
n.
- Sum of Data
To obtain the sum of all the values entered into statistics memory, press
shift
then
sum.
- Sum of Squares
of Data
To obtain the sum of the squares of all the values entered into statistics
memory, press
shift then
ssq.
- Average of Data
To obtain the mean (arithmetic average) of all the values entered into
statistics memory, press
shift then
avg.
- Data Standard
Deviation
To obtain the standard deviation of all the values entered into statistics
memory, press
shift then
sdv.
- Data Sample
Standard Deviation
To obtain the sample standard deviation of all the values entered into
statistics memory, press
shift then
ssd.