WGU C207 Data Driven Decision Making
| Study Guide & OA Exam Prep|| LATEST
UPDATE 2026/27
Z-Score -CORRECTANSWER Data points only. Measurement of a scores relationship
to the mean. A statistical measure that indicates the number of standard deviations a
data point is from its mean.
Variance -CORRECTANSWER How far a set of numbers are spread. Used for Data
set. Hint Words = Risk, spread.
Multiplication Rule -CORRECTANSWER A method for finding the probability that both
of two events occur. When the probabilities of multiple events are multiplied together to
determine the likelihood of all of the events happening. Word Hint: And
Addition Rule -CORRECTANSWER A method for finding the probability that either or
both of two events occur. When two events, A and B, are mutually exclusive, the
probability that A or B will occur is the sum of the probability of each event. Word Hint:
Either/or.
Combination Rule -CORRECTANSWER How many combinations can be made.
, Bayes Theorem -CORRECTANSWER Probability of an event , based on conditions that
might be related to the event. Conditional probability. A formula that calculates
conditional probabilities. Important for understanding how new information affects the
probabilities of outcomes. Word Hint: Given that.
Median -CORRECTANSWER Number halfway into the data set. Hint Word: Typical
Mode -CORRECTANSWER Number that occurs most often in a data set.
Mean -CORRECTANSWER Average. Add all numbers and divide.
Standard Deviation -CORRECTANSWER How spread out the numbers are. Square
root of the variance.
Pareto Chart -CORRECTANSWER Contains both line and bar graphs. Ordered by
frequency of occurrence that shows how many results were generated by each
identified cause.
Cause and Effect Diagram -CORRECTANSWER Shows the causes of a specific event.
Check Sheet -CORRECTANSWER Collect data in real time.
| Study Guide & OA Exam Prep|| LATEST
UPDATE 2026/27
Z-Score -CORRECTANSWER Data points only. Measurement of a scores relationship
to the mean. A statistical measure that indicates the number of standard deviations a
data point is from its mean.
Variance -CORRECTANSWER How far a set of numbers are spread. Used for Data
set. Hint Words = Risk, spread.
Multiplication Rule -CORRECTANSWER A method for finding the probability that both
of two events occur. When the probabilities of multiple events are multiplied together to
determine the likelihood of all of the events happening. Word Hint: And
Addition Rule -CORRECTANSWER A method for finding the probability that either or
both of two events occur. When two events, A and B, are mutually exclusive, the
probability that A or B will occur is the sum of the probability of each event. Word Hint:
Either/or.
Combination Rule -CORRECTANSWER How many combinations can be made.
, Bayes Theorem -CORRECTANSWER Probability of an event , based on conditions that
might be related to the event. Conditional probability. A formula that calculates
conditional probabilities. Important for understanding how new information affects the
probabilities of outcomes. Word Hint: Given that.
Median -CORRECTANSWER Number halfway into the data set. Hint Word: Typical
Mode -CORRECTANSWER Number that occurs most often in a data set.
Mean -CORRECTANSWER Average. Add all numbers and divide.
Standard Deviation -CORRECTANSWER How spread out the numbers are. Square
root of the variance.
Pareto Chart -CORRECTANSWER Contains both line and bar graphs. Ordered by
frequency of occurrence that shows how many results were generated by each
identified cause.
Cause and Effect Diagram -CORRECTANSWER Shows the causes of a specific event.
Check Sheet -CORRECTANSWER Collect data in real time.
