Solve for the X -Coordinate of the Solution of the Following

question 161

Multiple Choice

Solve for the x -coordinate of the solution of the following system. $\left\{ \begin{array} { l } x + 2 y - z = 0 \\x - 4 y + z = - 8 \\x + 4 y - 2 z = 5\end{array} \right.$

• A) x=-5
• B) x=5
• C) x=4
• D) x=-4

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Definitions:

Hypothesized Value

A specific value or condition proposed in a hypothesis that is tested through statistical analysis.

One-Tail Test

A type of statistical hypothesis test where the rejection area is located on just one side of the sampling distribution.

Two-Tail

Pertains to a type of statistical test that assesses the possibility of an effect being in two opposite directions, not favoring either tail of the distribution.

P-Value

A measure in statistical hypothesis testing representing the probability of obtaining test results at least as extreme as the results actually observed, assuming that the null hypothesis is correct.