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WGU C207 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✔Observation 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
Middle score for a set of data - Answer✔Median (Note: skewness does not affect the median)
Tells us the number of standard deviations a data point is from the mean. - Answer✔Z-score =
(Value - Mean) / Std Deviation
If the average is the same for two groups, what will determine their difference? -
Answer✔Variance (Standard Deviation)
The spread of data in a sample. How far the data points are from the mean. - Answer✔Standard
Deviation
Measure of central tendency that is influenced by the size of the values in a dataset. -
Answer✔Mean
Note: Skewness does affect the mean
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✔1 customer and 6 booths = 1/6 or 16.7%
The order you pick you sample in does not matter - Answer✔Combination
Picking employees for a shift. Order doesn't matter
2
WGU C207 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✔Observation 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
Middle score for a set of data - Answer✔Median (Note: skewness does not affect the median)
Tells us the number of standard deviations a data point is from the mean. - Answer✔Z-score =
(Value - Mean) / Std Deviation
If the average is the same for two groups, what will determine their difference? -
Answer✔Variance (Standard Deviation)
The spread of data in a sample. How far the data points are from the mean. - Answer✔Standard
Deviation
Measure of central tendency that is influenced by the size of the values in a dataset. -
Answer✔Mean
Note: Skewness does affect the mean
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✔1 customer and 6 booths = 1/6 or 16.7%
The order you pick you sample in does not matter - Answer✔Combination
Picking employees for a shift. Order doesn't matter
2
