To help our viewers calculate a weighted mean with their TI-84 or TI-83 calculator. We will do a sample problem using the information bellow.
|Data Value : use L2||Weight : use L3|
- Input the above in your Ti-84 or TI-83 calculator
Instructions on how to Create a List TI-84 | TI-83 tutorial. (In this example we will store the data in L2. We will then store the weighted value into L3.)
- Use 1-var stats to find the weighted mean.
| [STAT] | [RIGHT] | [ENTER] | [2nd] | [ 2 ] | [ , ] | [2nd] | [ 3 ] | [ENTER] |
- Note: Some TI-84 Plus Silver Editions have an different operating system. If you have a screen that prompts you for the List and FreqList due the following:
| [STAT] | [RIGHT] | [ENTER] | [2nd] | [ 2 ] | [ENTER] | [2nd] | [ 3 ] | [ENTER] | [ENTER]
Note: the weighted mean formula and the frequency distribution formula use the same calculations. This is why they closely resemble each other.
Well Done! You have learned how to solve the a sample test question on the weighted mean.
Last Modified on September 7, 2013 by