Q: Fill in the blank: Regression models are groups of _____ techniques that use data to estimate the relationships between a single dependent variable and one or more independent variables.
- Application
- exploratory data
- coding
- statistical
Q: A data professional considers what data they have access to and how
to view that data in a problem context. What PACE stage are they working in?
- Plan
- Construct
- Analyze
- Execute
Q: What technique estimates the relationship between a continuous
dependent variable and one or more independent variables?
- Linear regression
- Complex regression
- Logistic regression
- Ethical regression
Q: Which of the following statements accurately describe dependent and
independent variables? Select all that apply.
- A dependent variable is often represented by X.
- An independent variable is the variable a given model estimates.
- A dependent variable is the variable a given model estimates.
- An independent variable is often represented by X.
Q: What describes a relationship in which one variable directly leads
another to change in a particular way?
- Intercept
- Correlation
- Causation
- Slope
Q: A data professional reviews existing samples of data for both the
dependent and independent variables. What is the term for this data sample?
- Observed values
- Link functions
- Parameters
- Intercepts
Q: A veterinary practice wants to determine whether most new patients
will choose to return for follow-up care. A data analyst for the practice
investigates this issue by modeling a categorical variable based on one or more
independent variables. What technique do they use?
- Logistic regression
- Coefficient regression
- Linear regression
- Slope regression
Q: A data professional wants to connect the dependent variable and
independent variable mathematically. What function can enable them to make this
connection?
- Coefficient function
- Link function
- Coefficient regression
- Link regression
Q: What group of statistical techniques uses data to estimate the
relationships between a single dependent variable and one or more independent
variables?
- Regression analysis
- Estimation coefficients
- Regression coefficients
- Estimation analysis
Q: Simple linear regression finds the mean of Y _____.
- for every observation
- given a particular value of X
- to predict a probability
- as X approaches zero
Q: A data professional creates a model in Python and rechecks the model
assumptions. What PACE stage are they working in?
- Plan
- Construct
- Analyze
- Execute
Q: Fill in the blank: _____ is a technique that estimates the
relationship between a continuous dependent variable and one or more
independent variables.
- Logistic regression
- Linear regression
- Complex regression
- Ethical regression
Q: What is an inverse relationship between two variables, where one
variable increases, the other variable tends to decrease?
- Positive correlation
- Negative causation
- Negative correlation
- Positive causation
Q: A data professional creates a linear regression equation and reviews
the properties of populations, sometimes referred to as Mu of y and the betas.
What term describes this portion of the equation?
- Lines
- Intercepts
- Parameters
- Slopes
Q: A roadside assistance company wants to identify the probability of
its customers renewing their annual membership. The analytics team looks into
this topic by modeling a categorical variable based on one or more independent
variables. What technique do they use?
- Linear regression
- Coefficient regression
- Slope regression
- Logistic regression
Q: What is a nonlinear function that connects the dependent variable to
the independent variables mathematically?
- Link regression
- Coefficient regression
- Link function
- Coefficient function
Q: How many dependent variables typically exist in a regression model?
- Four
- Two
- One
- Three
Q: A data professional closely examines their data to choose a model
that is appropriate to the problem they want to solve. What PACE stage are they
working in?
- Execute
- Construct
- Plan
- Analyze
Q: A data professional reviews the estimated betas, often designated
with a hat symbol. What is the term for this estimated beta?
- Slope coefficients
- Regression coefficients
- Regression intercepts
- Parameter intercepts
Q: Fill in the blank: A _____ connects the dependent variable to the
independent variables mathematically.
- Link function
- Coefficient function
- Coefficient regression
- Link regression
Q: A data professional is estimating the relationship between a
continuous dependent variable and one or more independent variables. What
technique are they using?
- Linear regression
- Complex regression
- Logistic regression
- Ethical regression
Q: What is a relationship between two variables that tend to increase
or decrease together?
- Positive causation
- Negative correlation
- Positive correlation
- Negative causation
Q: Which of the following statements accurately describe dependent and
independent variables? Select all that apply.
- Independent variables tend to vary based on the values of dependent variables.
- Independent variables are typically represented by Y.
- Dependent variables tend to vary based on the values of independent variables.
- Dependent variables are typically represented by Y.