In repeatibility one can multiply without reproduction but in reproductivity one can not multiply without reproduction

Repeatability and reproducibility are both terms used in the context of measurement and experimentation, but they refer to slightly different concepts:

1. Repeatability: Repeatability refers to the precision or consistency of results obtained when the same measurement or experiment is repeated multiple times by the same person or under the same conditions. It assesses the degree to which repeated measurements or experiments yield similar results. In other words, repeatability measures the variability in results due to random errors or fluctuations in the measurement process.

2. Reproducibility: Reproducibility, on the other hand, refers to the ability to obtain similar results when the same measurement or experiment is conducted by different people or under different conditions. It assesses the degree to which the same results can be obtained by different individuals or in different laboratories. Reproducibility takes into account the variability in results due to both random errors and systematic errors arising from different experimental setups, equipment, or operators.

In summary, repeatability focuses on the consistency of results obtained within a single measurement or experiment, while reproducibility focuses on the ability to obtain similar results across different measurements or experiments conducted by different individuals or under different conditions.