Why does my calculator say stat error?
The “STAT Error” that appears when the DATA button is pressed indicates that the calculator does not have a statistics mode set. In the menu that appears select either 1-VAR, if you have one list of data, or 2-VAR, if you have 2 lists of data. Now you can press [DATA] to enter you statistical data.
What does stat error mean?
A statistical error is the (unknown) difference between the retained value and the true value. Context: It is immediately associated with accuracy since accuracy is used to mean “the inverse of the total error, including bias and variance” (Kish, Survey Sampling, 1965). The larger the error, the lower the accuracy.
Why am I getting a domain error on my calculator TI 30x?
The error message “FRQ DOMAIN Error” indicates that one of the frequency entries for a statistics problem exceeds the maximum number allowed. Push the [Clear] button to clear the error message. • Edit the FRQ value you have entered to a value below 100.
What is an acceptable standard error?
A value of 0.8-0.9 is seen by providers and regulators alike as an adequate demonstration of acceptable reliability for any assessment.
Can you do standard deviation on TI 30X IIS?
For TI-30X IIS/B and TI-34 II Explorer Plus users: Example: Enter the following x variables, and determine the sample and population standard deviations. 1) Press [2nd], [STAT], and then choose 1-VAR. 2) Press [DATA] and begin to enter the data as indicated. Press the down arrow key to move on to the next data point.
How do I use the keys on the TI-30X IIB?
The TI-30X IIB has the exact same keys as the TI-30X IIS. S is the solar version of the calculator and B is the battery operated version. The position of the graphically represented keys can be found by moving your mouse on top of the graphic. Press . Press (you should see STAT above the key). A menu is displayed with three choices.
How do I Turn on and off the TI-30X ö?
& turns on the TI-30X Ö . % ‘ turns it off and clears the display. APD™ (Automatic Power Down™) turns off the TI-30X Ö automatically if no key is pressed for about 5 minutes. Press & after APD. The display, pending operations, settings, and memory are retained.
What is a ti-30xiis calculator?
The TI-30XIIS calculator costs less than $20.00, but has features that will be used throughout algebra, trigonometry, and statistics. Its 2 line display allows “visually perfect” entries; that is, you can type in the problem exactly as it looks.
How do I evaluate expressions in the TI-30X ö?
The TI-30X Ö uses EOS é (Equation Operating System) to evaluate expressions. Expressions inside parentheses. Functions that need a ) and precede the argument, such as sin, log, and all RÍP menu items. Fractions. Functions that are entered after the argument, such as x2 and angle unit modifiers ( Ä Å Æ r g).