When particles are suspended in a viscous (thick) mixture. Lots of oatmeal based lotions are colloidal.
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distinguish between dispersion and skewness
Dispersion is the act of spreading people or things (like seeds) out over a large area. Measures of dispersion tell us the degree of variation of values in a sample or population.
Dense smoke from a forest fire - would disperse in the atmosphere. This would be an example of natural dispersion
The Absolute Measure of dispersion is basically the measure of variation from the mean such as standard deviation. On the other hand the relative measure of dispersion is basically the position of a certain variable with reference to or as compared with the other variables. Such as the percentiles or the z-score.
Simply put "a perminent distribution of the substance in the solvent". Colloids don't really form true solutions like sodium chloride does with water. Think of "Milk" as a great example. Water, Fats, and Proteins all get mixed together to make milk. The fats and proteins don't really get broken down, just kind of suspended in the mix.