The statistical technique used by investigators to combine the quantitative results from all previous studies on a question is known as _____________.

A) Combinatory statistics
B) Meta-analysis
C) Re-analysis
D) Statistical inference

Meta-analysis is the statistical technique used by investigators to combine quantitative results from all previous studies on a particular question. This allows for a more comprehensive and precise understanding of the relationship between variables. Combinatory statistics and re-analysis are not commonly used terms in this context, and statistical inference is a broader term that refers to the process of drawing conclusions from statistical data.