Statistics Final Wgu Academy Expected Questions And Answers 2027

STATISTICS FINAL WGU ACADEMY EXPECTED QUESTIONS AND
ANSWERS 2027

Question 1.
nominal variables

Correct Answer: Categorical variables that there is no natural order among the
categories


Question 2.
ordinal variable

Correct Answer: Categorical variables where there is natural order among the
categories (low-high)


Question 3.
interval

Correct Answer: A measurement which makes sense to talk about the difference
between values but not the ratio between values


Question 4.
ratio

Correct Answer: Quantitive variables where is makes sense to talk about the
difference in ratios. (Income, weight)


Question 5.
In ratios:

Correct Answer: Value 0 means the absence of quantity (income $0)


Question 6.
Distribution of a Variable

Correct Answer: Tells us what values the variables take and how often they take
those values


Question 7.
In intervals:

Correct Answer: Vale 0 does not mean the absence of value (temp = 0F)

, Question 8.
Pie charts

Correct Answer: Emphasize how the different categories relate to the whole


Question 9.
Bar charts

Correct Answer: Emphasize how the different categories compare with each
other


Question 10.
Histogram

Correct Answer: Breaking the range of values into intervals and count how many
observations fall into interval.


Question 11.
Stemplot(stem and

Correct Answer: leaf plot) Graphical display of quantitive data. Data is spread
into "stem" and "leaf". It retains the data and sorts.


Question 12.
Boxplot

Correct Answer: Graphically represents the distribution of a quantitive variable.
Visually displays the five number summary and the observations classified as a
suspected outlier.


Question 13.
Measures of Center

Correct Answer: Mode, mean, and median.


Question 14.
Mode

Correct Answer: The most commonly occurring value. Can be unimodal or
bimodal


Question 15.
Mean