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Solution 11239: Computing One-Variable Statistics on the BA II PLUS™ and the BA II PLUS™ PROFESSIONAL.

How can I compute one-variable statistics on the BA II PLUS and the BA II PLUS PROFFESIONAL?

To compute one-variable statistics on the BA II PLUS or the BA II PLUS PROFESSIONAL, follow the steps below:

For Example: Below is a sample of prices for a particular item at 10 randomly selected stores. Find the mean and the sample standard deviation.

$63, $66, $69, $69, $71, $72, $74, $74, $74, $76

1) Press [2nd] then the [7] key to access the DATA worksheet.
2) Once in the worksheet press [2nd] then [CE/C] to clear the worksheet.
3) Enter 63 and press [ENTER] and then press the [↓] twice.
4) Enter 66 and press [ENTER] and then press the [↓] twice.
5) Enter 69 and press [ENTER] and then [↓] once.
6) Enter 2 and press [ENTER] for the frequency, then [↓] once.
7) Enter 71 and press [ENTER] and then press the [↓] twice.
8) Enter 72 and press [ENTER] and then press the [↓] twice.
9) Enter 74 and press [ENTER] and then [↓] once.
10) Enter 3 and press [ENTER] for the frequency, then [↓] once.
11) Enter 76 and press [ENTER].
12) Press [2nd] then [8] to access the STAT menu.
13) Press [2nd] then [Enter] repeatedly until 1-V is displayed.
14) [↓] to view the sample size which is 10.00.
15) [↓] to view the mean which is 70.80
16) [↓] to view the sample standard deviation which is 4.08.

Please see the BA II PLUS or BA II PLUS PROFESSIONAL guidebooks for additional information.