Solve Systems of Linear Equations in Three Variables
- $$\begin{array} { l } x - y + z = 2 \\x + y + z = 0 \\x + y - z = - 6\end{array}$$

question 271

Multiple Choice

Solve Systems of Linear Equations in Three Variables
- $$\begin{array} { l } x - y + z = 2 \\x + y + z = 0 \\x + y - z = - 6\end{array}$$

• A) \(\{ ( - 2 , - 1,3 ) \}\)
• B) \(\{ ( - 2,3 , - 1 ) \}\)
• C) \(\{ ( - 1,3 , - 2 ) \}\)
• D) \(\{ ( 3 , - 2 , - 1 ) \}\)

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Definitions:

Pooled Proportion

A method used to combine the proportions from different groups in statistical analysis to obtain a common proportion.

Test Statistic

A value calculated from sample data during a hypothesis test that is used to decide whether to reject the null hypothesis.

Null Hypothesis

A statistical hypothesis that assumes no significant difference or effect exists among the variables being studied.

Null Hypothesis

The hypothesis that there is no significant difference or effect, serving as the default assumption to be tested against the alternative hypothesis.