Question about Texas Instruments TI-30XA Calculator
"x bar" returns the mean of a series of numbers entered in "statistical mode".
e.g.enter 3, then press the "sigma plus" key (just above the "STO" key. Display will show "n = 1" and "STAT" will display to remind you that you are in statistical mode.
Enter 3 the "sigma plus" and you will see "n = 2" to tell you that you have entered two numbers. Keep doing this for a few more, then press "2nd x bar" and you will see the mean of all the numbers you entered, which is 3 if you entered all 3's.
To exit "STAT" mode, you have to press "2nd" then "CSR" (just above the 7 key), since the regular "clear" key only clears the pending entry.
Lots of simple statistical stuff you can do on the TI-30XA, read the guide book, available online at TI if you don't have one
Posted on Dec 31, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Sep 21, 2011 | Yamaha V-Max Motorcycles
Aug 11, 2011 | Nokia 1100
Jul 16, 2011 | Computers & Internet
Jul 11, 2011 | Radio Flyer Steer and Stroll Deluxe Trike
Jul 02, 2011 | Dynacraft Girls 16" Barbie Bike
Jun 09, 2011 | 1996 GMC Sierra
May 22, 2011 | Cycling
Mar 18, 2011 | Nokia C3 Cell Phone
140 people viewed this question
Usually answered in minutes!
Level 3 Expert
Level 3 Expert
Level 2 Expert
Step 2: Please assign your manual to a product: