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This wikiHow teaches you how to calculate the standard deviation of a data set on the TI-84 graphing calculator. Standard deviation is used to determine how scattered the data set is compared to the mean. After entering the data, you can use the 1-var-stats option to calculate a variety of statistics, including the mean, sum, sample standard deviation, and standard deviation. of the whole in one step.
Steps
Note: The TI-84 calculator allows up to 6 different data set lists to be entered.
- Use the arrow buttons to go to list L1 (first column).
- Press ⎚ Clear .
- Press ↵ Enter .
- Repeat with the other data list.
- Some non-Plus TI calculators often ignore this screen and display the results automatically.
Tip: If you’ve created multiple lists and want to select a different column, press the number corresponding to that column. For example, if you want to calculate the standard deviation of the values that you entered in column L4, press 2ND and enter 4 . [1] X Research Source
- Sx is the standard deviation of the sample, and σx represents the standard deviation of the population. The value you will use depends on whether you used the data from the sample or the whole thing. [2] X Research Source
- A low standard deviation indicates that the values in the list do not depend much on the mean, a high standard deviation means that the data set has a wide spread. [3] X Research Sources
- x̄ represents the mean of the data set.
- Σx represents the sum of all values.
This article is co-authored by a team of editors and trained researchers who confirm the accuracy and completeness of the article.
The wikiHow Content Management team carefully monitors the work of editors to ensure that every article is up to a high standard of quality.
This article has been viewed 1,198 times.
This wikiHow teaches you how to calculate the standard deviation of a data set on the TI-84 graphing calculator. Standard deviation is used to determine how scattered the data set is compared to the mean. After entering the data, you can use the 1-var-stats option to calculate a variety of statistics, including the mean, sum, sample standard deviation, and standard deviation. of the whole in one step.
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