QR: Quantitative Reasoning

Quantitative Reasoning

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Quantitative Reasoning emphasizes practical numeracy: ratio and proportional reasoning, statistical analysis, probabilistic risk assessment, and mathematical modeling. The course targets real-world problem-solving rather than abstract theory. Numeracy is the foundation, and all other domains apply it directly to authentic contexts.

QR.MModelingQR.NNumeracyQR.PProbabilistic Reasoning to Assess RiskQR.RPRatio and Proportional ReasoningQR.SStatistics
Example Problems
Evaluate the expression:

when
and
Lily's car has a fuel efficiency of 8 liters per 100 kilometers.

What is the fuel efficiency of Lily's car in
kilometers per liter?
If you flip three fair coins, what is the probability that you'll get at least two heads?
Julio pays $18 for pounds of coffee.

What is the cost per pound of coffee?
The grades on a biology midterm at Northgate are roughly symmetric with and . Lucas scored 65 on the exam.

Find the
z-score for Lucas's exam grade.
Round to two decimal places.
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