Regression Analysis Q A
Regression Analysis Q A
Regression Analysis Q A
Based on the hands on card “ OLS in Python Statsmodels” What is the value of the
estimated coef for variable RM ?
9.1021 — Correct
Based on the hands on card “ OLS in Python Statsmodels”What is the value of the
constant term ?
-34.6706 — Correct
Based on the hands on card “ OLS in Python Statsmodels” What is the adjusted R
sq value ?
0.483 — Correct
Based on the hands on card “ OLS in Python Statsmodels” What is the value of R
sq ?
0.484 — Correct
Based on the hands on card “ OLS in Python Statsmodels” How many observations
are there in the dataset ?
506 — Correct
Based on the hands on card “MLR Hands On” Perform a correlation among all the
independent variables . What is the correlation between variables NOX and DIS ?
-0.76923 — Correct
Based on the hands on card “MLR Hands On” What is the P>|t| value for the
‘INDUS’ variable ?
0.731 — Correct
Based on the hands on card “MLR Hands On” What is the standard error for the
constant term ?
5.104 — Correct
Based on the hands on card “MLR Hands On” What is the value of the estimated
coef for the constant term ?
36.4911 — Correct
Based on the hands on card “MLR Hands On” what is the value of R sq ?
0.741 — Correct
In Multi Variable regression you predict one variable using more than one
variable
True — Correct
What is the process of removing the mean and dividing the value by the standard
deviation
Standatdization — Correct
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R Square — Correct
When more variables are added in Multi Variable Regression the marginal
improvement decreases as each variable is added. This term is called ?
Law of Diminishing Returns — Correct
SSE is _ for the Line of Best Fit and _ for the baseline model
Small , Big — Correct
What is the term that represents the difference between actual and predicted
value called ?
Residual — Correct
What is the good range of correlation values to include in the regression model
-0.7 to + 0.7 — Correct
What is the quantity that measures the strength of relationship between two
variables ?
Correlation — Correct
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