Which of the following is true? a. Stratification is utilized to create a z-score across data sets. b. Summarization provides detail for each grouping into tables. c. Stratification is an extension of summarization. d. Stratification is the splitting of data into case-specific tables.

Option D

Stratification is the splitting of data into case-specific tables is true.

Explanation:

Stratification is a method or configuration of layers, groups, or sections. Stratification intends to classify data/characters/objects into distinct groups or layers. Stratification consists of splitting the group into subsets (named strata) within individual of which an autonomous sample is chosen.

Stratified sampling in statistics is applied to highlight contrasts within groups in a population, as objected to simple random sampling. Stratification is the part of something, primarily society, into various groups or layers.