TI-89 / TI-92 Plus / Voyage™ 200 PLT Statistics with List Editor App … List Menu 59
mean(
Description
… (
List) Æ 3:Math Æ 3:mean(
mean( returns a VALUE containing the mean of the elements in LIST1.
mean(LIST1) ⇒ VALUE
Example
Setup:
list1={1,3,8,11,15}
1. Highlight the first cell of a list (
list2) where you want to return the mean of the
elements.
2. Press … (List) and select 3:Math. Then select 3:mean(. The mean( function is displayed
in the entry line. Enter the list (
list1) from which you want to display the mean of the
elements.
Tip: You can press 2 °, highlight a list,
and then press ¸ to paste the list name into
the list editor. Be sure to close arguments with a
right parenthesis (d).
You can also press …
(List) and select 1:Names
to display the VAR-LINK [All] menu.
3. Press ¸ to calculate and display the mean.
Note:
To generate a decimal approximation press
¥ ¸ for step 3. To generate a decimal
approximation for a single-element value, move
the cursor to the fraction for which you want the
approximate decimal, press ¸ to highlight it
on the entry line, and then press ¥ ¸.
You can also set the calculator to
APPROXIMATE mode. (Press 3 „ and then
set Exact/Approx to APPROXIMATE.)