Solve the System of Linear Equations Using Matrices $$\left\{ \begin{aligned}4 x - y + 8 z & = 50 \\- 6 x + 4 z & = - 36 \\4 y + z & = 27\end{aligned} \right.$$

question 125

Multiple Choice

Solve the system of linear equations using matrices.
- $$\left\{ \begin{aligned}4 x - y + 8 z & = 50 \\- 6 x + 4 z & = - 36 \\4 y + z & = 27\end{aligned} \right.$$

• A) \(( - 8,6,16 )\)
• B) \(( 8,6,3 )\)
• C) \(( 8,3,6 )\)
• D) \(\varnothing\)

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Definitions:

Confidence Interval

A set of values from sample statistics expected to cover the value of a not-yet-known population parameter.

Unbiased Estimator

A statistical estimator that is expected to equal the true parameter of the population being studied.

Consistent Estimator

A statistical property where an estimator of a parameter tends to converge to the true parameter value as the sample size increases.

Variance

A measure of variability that quantifies the spread of a set of data points around the mean.