In order for $\sigma_{\bar{\chi}}^{\bar{x}}$ to be as low as possible in stratified sampling, it is preferable that each of the strata have as little homogeneity as possible.

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In stratified sampling, it is preferable for each of the strata to have as much homogeneity as possible to minimize the standard error ($\sigma_{\bar{\chi}}^{\bar{x}}$) of the sample mean. This ensures that each stratum accurately represents a specific segment of the population, leading to more precise overall estimates.

In Order For σχˉxˉ\sigma_{\bar{\chi}}^{\bar{x}}σχˉ​xˉ​ To Be as Low as Possible in Stratified Sampling, It

In Order For $\sigma_{\bar{\chi}}^{\bar{x}}$ To Be as Low as Possible in Stratified Sampling, It