Maths Exam Prep Questions and Answers 2026

Maths Exam Prep Questions and Answers 2026


Question:
Categorical (Qualitative) data is either:
Answer:
Nominal (stand alone/label); or


Ordinal (ordered/ranked)

Question:
Numerical (Quantitative) data is either:
Answer:
Discrete (whole numbers)


Continuous (infinite options)

Question:
Ways to present categorical data:
Answer:
Bar graphs (percentages labelled), Pie graphs, Cross tabulations, Stacked bar graph, clustered bar
charts


Question:
Range
Answer:
Maximum - minimum


Question:
Variance
Answer:
Squared deviation around the mean


Question:

, Coefficient of variation
Answer:
Relative measure of variability


Question:
A skewness value more than its standard error is taken to indicate a departure from symmetry.
Answer:
twice, significant


Question:
Left skew
Answer:
Negative skew


Question:
Right skew
Answer:
Positive skew


Question:
Kurtosis
Answer:
Extent to which observations cluster around a central point and fatness of tails.


Question:
Empirical rule
Answer:
Values for Z and t


Question:
Which distribution is the odd one out w.r.t. skewness? A. Incomes B. Household debt C. Age when
people retire D. Capital value of publicly listed companies