MISY 262 - Quiz 5 & Final Exam Questions with Correct Answers Latest Update 2026/2027
What does the F statistic measure - Answers The extent to which the model is reliable
T/F: an F-stat > .05 means the model is statistically reliable - Answers FALSE
T/F: A smaller standard error means a better fit - Answers TRUE
T/F: It is possible to get an R^2 of 100% - Answers FALSE
What does adjusted R^2 measure - Answers The extent to which the data fits the model
To use the predict method, we need to - Answers make x into a data frame
Use the linear regression model
what is P-vale used for - Answers validate a hypothesis against observed data
What does Linear regression answer? - Answers How much?
How many?
Y= - Answers Continous variable
What are the independent variables in a linear regression used for? - Answers estimate the
specific value of the dependent variable
In a logistic regression, the dependent variable is what? - Answers binary
T/F: In logistic regression, the dependent variable is binary, meaning the probability that
expression 1 occurs is estimated. - Answers TRUE
What does logistic regression answer? - Answers Will it happen or not?
T/F: Using a threshold makes a classifier - Answers TRUE
What threshold line should you use to have a classifier? - Answers .05
Logistic regression is similar to linear regression, except: - Answers The curve goes from 1 to 0
Logistic regression is used to complete - Answers classification type tasks
T/F: to used predict, we must data.frame (independent_variable) - Answers TRUE
What does accuracy measure - Answers The accuracy of the model is calculated by calculating
the percentage of correct predictions
What does precision measure - Answers the exactness of the model
What does recall measure - Answers the completeness of the model
What does the F statistic measure - Answers The extent to which the model is reliable
T/F: an F-stat > .05 means the model is statistically reliable - Answers FALSE
T/F: A smaller standard error means a better fit - Answers TRUE
T/F: It is possible to get an R^2 of 100% - Answers FALSE
What does adjusted R^2 measure - Answers The extent to which the data fits the model
To use the predict method, we need to - Answers make x into a data frame
Use the linear regression model
what is P-vale used for - Answers validate a hypothesis against observed data
What does Linear regression answer? - Answers How much?
How many?
Y= - Answers Continous variable
What are the independent variables in a linear regression used for? - Answers estimate the
specific value of the dependent variable
In a logistic regression, the dependent variable is what? - Answers binary
T/F: In logistic regression, the dependent variable is binary, meaning the probability that
expression 1 occurs is estimated. - Answers TRUE
What does logistic regression answer? - Answers Will it happen or not?
T/F: Using a threshold makes a classifier - Answers TRUE
What threshold line should you use to have a classifier? - Answers .05
Logistic regression is similar to linear regression, except: - Answers The curve goes from 1 to 0
Logistic regression is used to complete - Answers classification type tasks
T/F: to used predict, we must data.frame (independent_variable) - Answers TRUE
What does accuracy measure - Answers The accuracy of the model is calculated by calculating
the percentage of correct predictions
What does precision measure - Answers the exactness of the model
What does recall measure - Answers the completeness of the model
