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WGU C207 Final Exam Review 2024/2025 with complete solution
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WGU C207 Final Exam Review 2024/2025 with complete solution
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WGU C207 Final Exam Review 2024/2025 with completesolution
There are two types of statistics (Analytics) - ANSWERDescriptive and Inferential
Descriptive statistics are used to _____? - ANSWERInform/ Explanatory
Inferential statistics are used to _______? - ANSWERPredict/ Trend
Name the 4 levels of measurement - ANSWER(NOIR) Normal, Ordinal, Interval, Ratio
Continuous data with unique zero point - ANSWERRatio
Orders datât at equal distance apart - ANSWERInterval
Place qualitative objects in some kind of order - ANSWEROrdinal
Identify, group, or categorize - ANSWERNominal
Outliers create this type of error - ANSWEROut-of-Range
Unpredictable error - ANSWERRandom error- No correlation
Error may occur from missing data ( Space not filled in) - ANSWEROmission Error-
Distorted Results
The error repeats itself - ANSWERSystematic Error- Skewed results
What is the process of quality Control? - ANSWERReduce/ minimize errors
All variable measurements and manipulations are under the researcher's control -
ANSWERexperimental study
Used when impractical or impossible to control the conditions of the study -
ANSWERObservational study
Participants are not told if they arena the treatment group or control group -
ANSWERBlind Study
The procedure the researcher applies to each subject - ANSWERTreatments
Neither the treatment allocator nor the participants know who is in the treatment group
or control group - ANSWERDouble blind study
, Questions favor an outcome or the interviewer asks questions that favor an outcome -
ANSWERInformation Bias
The average outcome (payout) when the future includes scenarios that may or may not
happen - ANSWERExpected monetary value (EVM) Analysis
Observation favor an outcome or the interviewer ask questions that favor and outcome -
ANSWEROutliers Note: Can be included or excluded in the analysis (Cause of
Skewness)
Bias tha occurs from not selection a random sample - ANSWERMeasurement bias
Bias introduced because responders believe it bill be beneficial if selected -
ANSWERConscious bias
Each of the four quartile groups a population can be divided - ANSWERQuartiles
Measures the difference between the third and first quartile - ANSWERIQR: inter-
quartile range Note: Must be ordered in lowest to highest. value
Used the study of the composition of a data set and examined the distribution -
ANSWERBox Plot
There are six toll booths to enter the highway. What possibility does each toll booth
have to get the next customer? - ANSWER1/6th
The order you pick your sample in does not matter - ANSWERCombination Picking
employees for a shift doesn't matter
When given P(A) given P(B), you can used this to find the P(B) given P(A) -
ANSWERBayes Theorem you must know P(A), P(B), P(A) given B
Apply this rule when looking for two events occurring (AND) - ANSWERMultiplication
Use this rule when looking for one of the other events happening (OR) -
ANSWERAddition
A simple regression using time as the independent variables - ANSWERTime series
A general slope upward or downward over a period of time - ANSWERTrend
Unforeseen circumstances causing random deviations - ANSWERIrregularity
Repetition in up and down patterns - ANSWERCyclicality
Regular Patterns within a single year - ANSWERSeasonality
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