With iodide, the solvate $\ce{NaI \cdot 3(CH3)2CO}$ can be formed, in which each $\ce{Na+}$ is coordinated by 6 acetone ligands via oxygen lone pairs, and the $\ce{I-}$ ions fill in the gaps between these octahedral units, being surrounded by the methyl groups of the acetones.
Randomization is a sampling method used in scientific experiments. It is commonly used in randomized controlled trials in experimental research.
The random sampling model and the randomization model lead to. the same statistical methods. C:\rsm\y520\sec5982_fall02\week_13\randomization.fm. Within broad limits, genralizability is possible because human beings are made out.