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