Statistics final wgu academy Question
and answers correctly solved
2025/2026
nominal variables - correct answer ✔Categorical variables that there is no natural order among the
categories
ordinal variable - correct answer ✔Categorical variables where there is natural order among the
categories (low-high)
interval - correct answer ✔A measurement which makes sense to talk about the difference between
values but not the ratio between values
ratio - correct answer ✔Quantitive variables where is makes sense to talk about the difference in
ratios. (Income, weight)
In ratios: - correct answer ✔Value 0 means the absence of quantity (income $0)
Distribution of a Variable - correct answer ✔Tells us what values the variables take and how often they
take those values
In intervals: - correct answer ✔Vale 0 does not mean the absence of value (temp = 0F)
Pie charts - correct answer ✔Emphasize how the different categories relate to the whole
Bar charts - correct answer ✔Emphasize how the different categories compare with each other
, Histogram - correct answer ✔Breaking the range of values into intervals and count how many
observations fall into interval.
Stemplot(stem and leaf plot) - correct answer ✔Graphical display of quantitive data. Data is spread into
"stem" and "leaf". It retains the data and sorts.
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.
Measures of Center - correct answer ✔Mode, mean, and median.
Mode - correct answer ✔The most commonly occurring value. Can be unimodal or bimodal
Mean - correct answer ✔The average of a set of observations.
The sum of observations divided by the number of observations. (x bar)
Median - correct answer ✔The midpoint of the distribution. (M)
Measures of soread - correct answer ✔Range, inter quartile range (IQR), standard deviation
How to find the median - correct answer ✔-order the data smallest to largest
-if the number(n) of observations is odd (n+1)/2nd spot
-if the number(n) of observations is even we have two n/2 = spot & n/2 + 1 = spot
Measure of center that is sensitive to outliers - correct answer ✔Mean
Measure of center that is not sensitive to outliers - correct answer ✔Median
and answers correctly solved
2025/2026
nominal variables - correct answer ✔Categorical variables that there is no natural order among the
categories
ordinal variable - correct answer ✔Categorical variables where there is natural order among the
categories (low-high)
interval - correct answer ✔A measurement which makes sense to talk about the difference between
values but not the ratio between values
ratio - correct answer ✔Quantitive variables where is makes sense to talk about the difference in
ratios. (Income, weight)
In ratios: - correct answer ✔Value 0 means the absence of quantity (income $0)
Distribution of a Variable - correct answer ✔Tells us what values the variables take and how often they
take those values
In intervals: - correct answer ✔Vale 0 does not mean the absence of value (temp = 0F)
Pie charts - correct answer ✔Emphasize how the different categories relate to the whole
Bar charts - correct answer ✔Emphasize how the different categories compare with each other
, Histogram - correct answer ✔Breaking the range of values into intervals and count how many
observations fall into interval.
Stemplot(stem and leaf plot) - correct answer ✔Graphical display of quantitive data. Data is spread into
"stem" and "leaf". It retains the data and sorts.
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.
Measures of Center - correct answer ✔Mode, mean, and median.
Mode - correct answer ✔The most commonly occurring value. Can be unimodal or bimodal
Mean - correct answer ✔The average of a set of observations.
The sum of observations divided by the number of observations. (x bar)
Median - correct answer ✔The midpoint of the distribution. (M)
Measures of soread - correct answer ✔Range, inter quartile range (IQR), standard deviation
How to find the median - correct answer ✔-order the data smallest to largest
-if the number(n) of observations is odd (n+1)/2nd spot
-if the number(n) of observations is even we have two n/2 = spot & n/2 + 1 = spot
Measure of center that is sensitive to outliers - correct answer ✔Mean
Measure of center that is not sensitive to outliers - correct answer ✔Median
