User Guide

Chapter 12: Statistics 199
The following screens demonstrate the
STAT WIZARDS flow for a STAT CALC menu command.
If the STAT WIZARD mode option if OFF, for each STAT CALC menu item, if neither Xlistname nor
Ylistname is specified, then the default list names are L1 and L2. If you do not specify freqlist, then
the default is 1 occurrence of each list element.
Frequency of Occurrence for Data Points
For most
STAT CALC menu items, you can specify a list of data occurrences, or frequencies
(
freqlist).
Each element in
freqlist indicates how many times the corresponding data point or data pair occurs
in the data set you are analyzing.
For example, if
L1={15,12,9,14} and ÙFREQ={1,4,1,3}, then the TI-84 Plus interprets the instruction
1-Var Stats L1, ÙFREQ to mean that 15 occurs once, 12 occurs four times, 9 occurs once, and 14
occurs three times.
1. Press press … ~ to select the STAT CALC
menu. Select
1 Í to select the 1 -Var Stats
menu.
Note: In this example, data has been entered in
L1.
2.
The 1 -Var Stats wizard opens. Enter the values in the
wizard. Scroll down to Calculate and p
ress Í.
Note:
FreqList is an optional argument.
3. The STAT CALC results are displayed.
4. Press † to scroll down through the data.
Note: This is a temporary view. Press 
5 to
view the statistic variables after clearing the
temporary result screen.
5. Press ‘ to clear the data from the screen.
6. Press } to view the populated command pasted.