Determine Whether the System Is Consistent A) $\mathrm { Yes }$

question 42

Multiple Choice

Determine whether the system is consistent.
- $$\begin{array} { l } x _ { 1 } + x _ { 2 } + x _ { 3 } = 7 \\x _ { 1 } - x _ { 2 } + 2 x _ { 3 } = 7 \\5 x _ { 1 } + x _ { 2 } + x _ { 3 } = 11\end{array}$$

• A) \(\mathrm { Yes }\)
• B) \(\mathrm { No }\)

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Definitions:

Blood Type

The classification of human blood based on the presence or absence of antibodies and inherited antigenic substances on the surface of red blood cells.

Association

In statistics, it refers to any relationship or correlation between two or more variables.

Null Hypothesis

A default statement in statistics that there is no significant effect or no difference, usually set as the assertion to be tested.

Chi-Square Test

A statistical test used to determine if a significant difference exists between the expected frequencies and the observed frequencies in one or more categories.