| A. Normal Error Curve |
| m |
|
|
|
|
|
|
| • | 68.3% of |
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| measurements will |
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| fall within ± s of the |
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| mean. |
|||||
| -1s |
| +1s |
|
|
|
|
|
| • | 95.5%
of measurements |
|||
| will
fall within ± 2s of |
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| the
mean. |
||||
| -2s |
| +2s |
|
|
|
|
|
| • | 99.7%
of measurements |
|||
| will
fall within ± 3s of |
||||
| the
mean. |
||||
| -3s |
| +3s |
| xi |