WGU C207 OA Study Guide Exam 79 Questions
with Verified Answers
Just Names that can be counted
Whole number, count, or total
(color of eyes, type of vehicle) - CORRECT ANSWER Nominal
Names that can be placed in an order and then counted
Whole number, count, or total
(top 10 football teams, satisfaction levels) - CORRECT ANSWER Ordinal
Numbers that have equal intervals and an order, but no true zero
Can be added and subtracted (NOT multiplied/divided)
(shirt size, dates, times) - CORRECT ANSWER Interval
Numbers that have equal intervals and an order, but also have a true zero
Can be added, subtracted, multiplied, divided, and ratioed
(percentages, money, rates) - CORRECT ANSWER Ratio
68.3 % of data within 1 σ of the mean
95.4 % of data within 2 σ of the mean
99.7 % of data within 3 σ of the mean - CORRECT ANSWER Normal
Distribution/Bell Curve
, "And, Both, All, Every, In a row"
MULTIPLICATION - CORRECT ANSWER Intersection
"Or, Either, Other"
ADDITION - CORRECT ANSWER Union
"Given that"
A, B =events
P (A|B) =probability of A given B is true
P (B|A) =probability of B given A is true
P(A), P(B) =the independent probabilities of A and B - CORRECT ANSWER Bayes
Relationship, correlation, R-Square, scatter plot - CORRECT ANSWER Regression
Keywords:
strength of the relationship; 0 Weaker to 1 Stronger relationship - CORRECT
ANSWER R-square (Goodness of fit) Keywords:
The dependent variable is binary (Yes/NO or On/Off) - CORRECT ANSWER Logistic
Regression:
Uses Constraints and keywords that are associated with the letter "M". Mix,
minimize, maximize, optimize - CORRECT ANSWER Linear Programming:
with Verified Answers
Just Names that can be counted
Whole number, count, or total
(color of eyes, type of vehicle) - CORRECT ANSWER Nominal
Names that can be placed in an order and then counted
Whole number, count, or total
(top 10 football teams, satisfaction levels) - CORRECT ANSWER Ordinal
Numbers that have equal intervals and an order, but no true zero
Can be added and subtracted (NOT multiplied/divided)
(shirt size, dates, times) - CORRECT ANSWER Interval
Numbers that have equal intervals and an order, but also have a true zero
Can be added, subtracted, multiplied, divided, and ratioed
(percentages, money, rates) - CORRECT ANSWER Ratio
68.3 % of data within 1 σ of the mean
95.4 % of data within 2 σ of the mean
99.7 % of data within 3 σ of the mean - CORRECT ANSWER Normal
Distribution/Bell Curve
, "And, Both, All, Every, In a row"
MULTIPLICATION - CORRECT ANSWER Intersection
"Or, Either, Other"
ADDITION - CORRECT ANSWER Union
"Given that"
A, B =events
P (A|B) =probability of A given B is true
P (B|A) =probability of B given A is true
P(A), P(B) =the independent probabilities of A and B - CORRECT ANSWER Bayes
Relationship, correlation, R-Square, scatter plot - CORRECT ANSWER Regression
Keywords:
strength of the relationship; 0 Weaker to 1 Stronger relationship - CORRECT
ANSWER R-square (Goodness of fit) Keywords:
The dependent variable is binary (Yes/NO or On/Off) - CORRECT ANSWER Logistic
Regression:
Uses Constraints and keywords that are associated with the letter "M". Mix,
minimize, maximize, optimize - CORRECT ANSWER Linear Programming:
