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C207 – WGU Exam Questions And Answers
2025 Update.
There are two types of statistics (Analytics) - Answer✔Descriptive and Inferential
Descriptive statistics are used to ______ - Answer✔Inform / Explanatory
Inferential statistics are used to ______ - Answer✔Predict / Trend
Name the 4 levels of measurement - Answer✔(NOIR) Nominal, Ordinal, Interval Ratio
Continuous data with unique zero point - Answer✔Ratio
Orders data at equal distance apart - Answer✔Interval
Place qualitative objects in some kind of order - Answer✔Ordinal
Identify, Group, or Categorize - Answer✔Nominal
Outliers create this type of error - Answer✔Out-of Range
Unpredictable error - Answer✔Random Error - No correlation
Error may occur from missing data. (Example: Space not filled in) - Answer✔Omission Error -
Distorted results
This error repeats itself - Answer✔Systematic Error - Skewed results
What is the process of quality control? - Answer✔Reduce/ minimize errors
All variable measurements and manipulations are under the researcher's control -
Answer✔Experimental study
Used when impractical or impossible to control the conditions of the study -
Answer✔Observational study
Participants are not told if they are in the treatment group or control group - Answer✔Blind
Study
The procedure the researcher applies to each subject - Answer✔Treatments
1
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 12:05PM.
Neither the treatment allocator nor the participants know who is in the treatment group or
control group - Answer✔Double blind study
Questions favor an outcome or the interviewer ask questions that favor an outcome. -
Answer✔Information Bias
The average outcome (payoff) when the future includes scenarios that may or may not happen
- Answer✔Expected Monetary Value (EMV) Analysis
Observation points that are distant from other observations. - Answer✔Outliers Note: Can be
included or excluded in analysis (causes skewness)
Bias that occurs from not selecting a random sample - Answer✔Measurement bias
Bias introduced because respondents believe it will be beneficial if selected. -
Answer✔Conscious bias
Each of the four quartile groups a population can be divided - Answer✔Quartiles
Measures the difference between the third and first quartile - Answer✔IQR: Inter-quartile
range Note: Must be ordered in lowest to highest value
Used to study the composition of a data set and examine the distribution - Answer✔Box Plot
There are six toll booths to enter the highway. What probability does each toll booth worker
have of getting the next customer? - Answer✔...
The order you pick you sample in does not matter - Answer✔Combination Picking employees
for a shift. Order doesn't matter.
When given P(A) given P(B), you can use this to find the P(B) given P(A) - Answer✔Bayes
Theorem You must know P(A), P(B), P(A) given B
Apply this rule when looking for two events occurring (AND) - Answer✔Multiplication
Use this rule when looking for one or the other event happening (OR) - Answer✔Addition
A simple regression using time as the independent variable - Answer✔Time series
A general slope upward or downward over a period of time - Answer✔Trend
Unforeseen circumstances causing random deviations - Answer✔Irregularity
Repetition in up and down patterns - Answer✔Cyclicality
Regular pattern within a single year - Answer✔Seasonality
Represents the probability that a variable falls with a certain range - Answer✔Cumulative
distribution
2
C207 – WGU Exam Questions And Answers
2025 Update.
There are two types of statistics (Analytics) - Answer✔Descriptive and Inferential
Descriptive statistics are used to ______ - Answer✔Inform / Explanatory
Inferential statistics are used to ______ - Answer✔Predict / Trend
Name the 4 levels of measurement - Answer✔(NOIR) Nominal, Ordinal, Interval Ratio
Continuous data with unique zero point - Answer✔Ratio
Orders data at equal distance apart - Answer✔Interval
Place qualitative objects in some kind of order - Answer✔Ordinal
Identify, Group, or Categorize - Answer✔Nominal
Outliers create this type of error - Answer✔Out-of Range
Unpredictable error - Answer✔Random Error - No correlation
Error may occur from missing data. (Example: Space not filled in) - Answer✔Omission Error -
Distorted results
This error repeats itself - Answer✔Systematic Error - Skewed results
What is the process of quality control? - Answer✔Reduce/ minimize errors
All variable measurements and manipulations are under the researcher's control -
Answer✔Experimental study
Used when impractical or impossible to control the conditions of the study -
Answer✔Observational study
Participants are not told if they are in the treatment group or control group - Answer✔Blind
Study
The procedure the researcher applies to each subject - Answer✔Treatments
1
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 12:05PM.
Neither the treatment allocator nor the participants know who is in the treatment group or
control group - Answer✔Double blind study
Questions favor an outcome or the interviewer ask questions that favor an outcome. -
Answer✔Information Bias
The average outcome (payoff) when the future includes scenarios that may or may not happen
- Answer✔Expected Monetary Value (EMV) Analysis
Observation points that are distant from other observations. - Answer✔Outliers Note: Can be
included or excluded in analysis (causes skewness)
Bias that occurs from not selecting a random sample - Answer✔Measurement bias
Bias introduced because respondents believe it will be beneficial if selected. -
Answer✔Conscious bias
Each of the four quartile groups a population can be divided - Answer✔Quartiles
Measures the difference between the third and first quartile - Answer✔IQR: Inter-quartile
range Note: Must be ordered in lowest to highest value
Used to study the composition of a data set and examine the distribution - Answer✔Box Plot
There are six toll booths to enter the highway. What probability does each toll booth worker
have of getting the next customer? - Answer✔...
The order you pick you sample in does not matter - Answer✔Combination Picking employees
for a shift. Order doesn't matter.
When given P(A) given P(B), you can use this to find the P(B) given P(A) - Answer✔Bayes
Theorem You must know P(A), P(B), P(A) given B
Apply this rule when looking for two events occurring (AND) - Answer✔Multiplication
Use this rule when looking for one or the other event happening (OR) - Answer✔Addition
A simple regression using time as the independent variable - Answer✔Time series
A general slope upward or downward over a period of time - Answer✔Trend
Unforeseen circumstances causing random deviations - Answer✔Irregularity
Repetition in up and down patterns - Answer✔Cyclicality
Regular pattern within a single year - Answer✔Seasonality
Represents the probability that a variable falls with a certain range - Answer✔Cumulative
distribution
2
