Solution 28631: Performing One-Variable Statistics on the TI-30XA.
How do I solve for one variable statistics on the TI-30XA?
The following example will demonstrate how to calculate one-variable statistics using the TI-30XA.
For example: Find the sum, mean, population standard deviation, and sample standard deviation for the data set: 6,4,5,7,10
Input the values:
1) Press 6, [Σ+]
2) Press 4, [Σ+]
3) Press 5, [Σ+]
4) Press 7, [Σ+]
5) Press 10, [Σ+]
Calculate the variables:
To display the sum:
1) Press [2nd], [Σx].
The answer is 32
To display the mean:
1) Press [2nd], [x̄].
The answer is 6.4.
To display the population standard deviation
1) Press [2nd], [σxn].
The answer is 2.059126.
To display the sample standard deviation:
1) Press [2nd], [σxn-1].
The answer is 2.30217
Please see the TI-30Xa and TI-30Xa Solar guidebook for additional information.