Wgu c957 Questions with Answers (100% Correct
Answers)
X axis lists: Answer: Independent variable/ input
Y axis lists: Answer: Dependent variable/output
Concave up Answer: U shaped/ decreases slower and slower then
increases faster and faster
Concave down Answer: upside down U/ increases slower and slower
and deacreases faster and faster
Validity of scatter plot Answer: Invalid if less than 10 points
Outlier Answer: Should always be investigated before
Interpolation of strong model correlation Answer: Within data points
Extrapolation of strong model correlation Answer: 50% of x values up
or down
Strong model correlation r2 value Answer: 0.7-1
Moderate model correlation r2 value Answer: 0.3-0.7
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