The obscure boundaries, regularly meant as a scalar or vector {\displaystyle \beta }\beta. The free factors, which are seen in information and are regularly indicated as a vector {\displaystyle X_{i}}x_{i} (where {\displaystyle i}i signifies a column of information). The reliant variable, which are seen in information and regularly meant utilizing the scalar {\displaystyle Y_{i}}Y_{i}. The mistake terms, which are not straightforwardly seen in information and are frequently signified utilizing the scalar {\displaystyle e_{i}}e_{i}. In different fields of utilization, various phrasings are utilized instead of reliant and autonomous factors.