Solve the system 
using the inverse method.
Definitions:
Proportion
A portion, segment, or fraction when evaluated in relation to its entirety.
Chi-squared Curve
Describes the distribution of a chi-squared statistic, used in hypothesis testing to determine how well observed data fit with expected data.
Degrees of Freedom
The number of independent values or quantities that can vary in the analysis without violating any constraints.
F Distribution
A probability distribution used in statistics to compare variances among samples, often employed in the analysis of variance (ANOVA).
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Q112: Solve the system using the inverse method.
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