Question: The R chart represents a range chart. The R chart: a Reflects short term variation b Helps evaluate whether the ranges within subgroups are consistent
The R chart represents a range chart. The R chart:
| a | Reflects short term variation | |
| b | Helps evaluate whether the ranges within subgroups are consistent across a set of data | |
| c | Reflects short and long term variation | |
| d | Reflects short term variation and also helps evaluate whether the ranges within subgroups are consistent across a set of data. |
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