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TI-89 / TI-92 Plus / Voyage™ 200 PLT Statistics with List Editor App … List Menu 65

stDevPop(

Description

… (

List) Æ 3:Math Æ 9:stDevPop(

stDevPop( returns a VALUE containing the standard deviation of a population based on

the sample contained in LIST1.

stDevPop(LIST1) ⇒ VALUE

The statistics functions

stDevPop( and stdDev( calculate the standard deviation of a

population differently.

stDevPop( divides by n, and StdDev( divides by n-1.

Note: LIST1 must have at least two elements.

Example

Setup:

list1={1,2,3,L6,3,L2}

1. Highlight the first cell of a list (list2) where you want to return the standard

deviation of a population.

2. Press … (List) and select 3:Math. Then select 9:stDevPop(. The stDevPop( function is

displayed in the entry line. Enter the list (

list1) for which you want to display the

standard deviation of a population.

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 standard deviation of a population.

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.)

Texas Instruments Voyage 200 Guide Book

Other manuals for Texas Instruments Voyage 200