Assertion: regression's variable | /r/HasProperty | error
Facets:
Source sentences:
text: where x i is a column vector of the ith observations of all the explanatory variables; β {\displaystyle {\boldsymbol {\beta }}} is a p×1 vector of unknown parameters; and the scalars ε i represent unobserved random variables (errors), which account for influences upon the responses y i from sources other than the explanators