Solve the System $$\left( \begin{array} { r l l } 2 x &+ &2 y & -& z & =& - 2 \\&&5 x &-& 2 y & = & - 8 \\&&2 x &+& 5 y & = & - 9\end{array} \right)$$

question 222

Short Answer

Solve the system. $$\left( \begin{array} { r l l } 2 x &+ &2 y & -& z & =& - 2 \\&&5 x &-& 2 y & = & - 8 \\&&2 x &+& 5 y & = & - 9\end{array} \right)$$

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Definitions:

Predictive Validity

The extent to which applicants’ test scores match criterion data obtained from those applicants/employees after they have been on the job for an indefinite period

Interview Format

The structured or unstructured layout of questions and interaction during a job interview.

Content Valid

A measure of how well a test or procedure assesses all relevant aspects of the subject it intends to measure.

Nondirective Interview

An interview in which the applicant is allowed the maximum amount of freedom in determining the course of the discussion, while the interviewer carefully refrains from influencing the applicant’s remarks.