|
|
VARPA
Calculates variance based on the entire population. In addition to numbers, text and logical values such as TRUE and FALSE are included in the calculation.
Syntax
VARPA(value1,value2, ...)
Value1,value2,... are 1 to 30 value arguments corresponding to a population.
Remarks
- VARPA assumes that its arguments are the entire population. If your data represents a sample of the population, you must compute the variance using VARA.
- Arguments that contain TRUE evaluate as 1; arguments that contain text or FALSE evaluate as 0 (zero). If the calculation must not include text or logical values, use VARP instead.
- The equation for VARPA is :
Example
Suppose all 10 tools stamped from the same machine during a production run are collected and measured for breaking strength.
The example may be easier to understand if you copy it to a blank spreadsheet.
How?
- Create a blank spreadsheet.
- Select the example in the Help topic.
Selecting an example from Help
- Press CTRL+C.
- In the spreadsheet, select cell A1, and press CTRL+V.
- To switch between viewing the formula that returns the result and the result in the cell, select the cell and press F2 and then ENTER, or click Commands and Options on the spreadsheet toolbar, click the Formula tab, and look in the Formula in active cell (active cell) box.
| Strength | |
|---|---|
| 1345 | |
| 1301 | |
| 1368 | |
| 1322 | |
| 1310 | |
| 1370 | |
| 1318 | |
| 1350 | |
| 1303 | |
| 1299 | |
| Formula | Description (Result) |
| =VARPA(A2:A11) | Variance of breaking strengths for all the tools, assuming that only 10 tools are produced (678.84) |