Texas Instruments TI-73 EXPLORER 用户手册

     Chapter 7: Statistical Analyses

7307ENG.DOC   CH 7, Statistical Analyses, English   Julie Hewlett   Revised: 07/29/98 12:07 PM   Printed: 05/19/99

9:00 AM   Page 134 of 22

Non-integer freq elements are valid. This is useful when

entering frequencies expressed as percentages or parts that

add up to 1. However, if freq contains non-integer frequencies,

 and 

 (sample standard deviation) are undefined, and

values are not displayed for 

 and 

 in the statistical results.

 

1-Var Stats and 2-Var Stats   -

 

  v

 

  !

 

 (one-variable statistics) analyzes data from one list

with one measured variable (X). 

 accepts two

optional arguments, XList and freq. If XList is not specified,

the default list name is 

.

[XList,freq]

 (two-variable statistics) analyzes paired data from

two lists with two measured variables, X, the independent

variable, and Y, the dependent variable. 

 accepts

three optional arguments, XList, YList, and freq. If XList and

YList are not specified, the default list names are 

 and 

.

[XList,YList,freq]

Find the 

 for 

, where 

. Use 

 as

freq, where 

.

1. Define two lists in the List

editor, 

 and 

.

3

For more information on entering lists,

see Chapter 5: Lists.

³