NORAC STUDY GUIDE 2026 FULL QUESTIONS
AND ANSWERS WITH SOLUTIONS GRADED A+
▶ Division Principle of Equality . Answer: If both sides of the equation are
divided by the same non-zero number, the result is an equivalent equation.
▶ Symmetry . Answer: The quality of the data having the same shape on
both sides of the mean.
▶ Contingency Table . Answer: A table that contains frequency counts for
two categorical variables. Also see Two-Way Frequency Table.
▶ Correlation . Answer: An observed relationship between two quantitative
variables. While this is most commonly a linear relationship, it does not
need to be. Not that observing a relationship does NOT imply that there is a
meaningful causal link between the variables.
▶ Sample . Answer: The small quantity of data gathered about a population
that will represent the population as a whole.
▶ What is the Fahrenheit equivalent for a patient's room that needs to be
kept at 25 degrees Celsius?
A. 70°
B. 75°
C. 77°
D. 80° . Answer: C. 77°
AND ANSWERS WITH SOLUTIONS GRADED A+
▶ Division Principle of Equality . Answer: If both sides of the equation are
divided by the same non-zero number, the result is an equivalent equation.
▶ Symmetry . Answer: The quality of the data having the same shape on
both sides of the mean.
▶ Contingency Table . Answer: A table that contains frequency counts for
two categorical variables. Also see Two-Way Frequency Table.
▶ Correlation . Answer: An observed relationship between two quantitative
variables. While this is most commonly a linear relationship, it does not
need to be. Not that observing a relationship does NOT imply that there is a
meaningful causal link between the variables.
▶ Sample . Answer: The small quantity of data gathered about a population
that will represent the population as a whole.
▶ What is the Fahrenheit equivalent for a patient's room that needs to be
kept at 25 degrees Celsius?
A. 70°
B. 75°
C. 77°
D. 80° . Answer: C. 77°
