Business Analytics Exam queries
and answers graded A+
The ________ regression method is used when the response variable is a qualitative or a categorical
variable. - ANS✅✅logistic
Which of the following methods do we use to best fit the data in logistic regression? -
ANS✅✅maximum likelihood
In logistic regression - ANS✅✅the dependent variable is categorical
Logistic regression is used when you want to - ANS✅✅predict a categorical variable from
continuous or categorical variables
A soccer player takes a shot on goal 15 times and scores a goal 3 of those attempts. What are the
odds of the soccer player scoring a goal? - ANS✅✅3/12
The probability of a new employee passing a test is .20. What are the odds of the employee passing
the test? - ANS✅✅.25
In logistic regression, ________ is used as a goodness-of-fit test. - ANS✅✅All of the choices are
correct
(deviance, Pearson, Hosmer-Lemeshow)
Which method can will we use to best fit the data in logistic regression? - ANS✅✅Maximum
likelihood
Consider the following model for logistic regression: P (y =1|x, h)= g(h0 + h1x) where g(z) is the
logistic function. In the preceding equation the P (y =1|x; h) , viewed as a function of x, that we can
get by changing the parameters h. What would be the range of P in such case? - ANS✅✅(0,1)
Logistic regression analysis can answer what three major questions about a dataset? -
ANS✅✅Causal analysis, forecasting of an outcome, and trend forecasting
and answers graded A+
The ________ regression method is used when the response variable is a qualitative or a categorical
variable. - ANS✅✅logistic
Which of the following methods do we use to best fit the data in logistic regression? -
ANS✅✅maximum likelihood
In logistic regression - ANS✅✅the dependent variable is categorical
Logistic regression is used when you want to - ANS✅✅predict a categorical variable from
continuous or categorical variables
A soccer player takes a shot on goal 15 times and scores a goal 3 of those attempts. What are the
odds of the soccer player scoring a goal? - ANS✅✅3/12
The probability of a new employee passing a test is .20. What are the odds of the employee passing
the test? - ANS✅✅.25
In logistic regression, ________ is used as a goodness-of-fit test. - ANS✅✅All of the choices are
correct
(deviance, Pearson, Hosmer-Lemeshow)
Which method can will we use to best fit the data in logistic regression? - ANS✅✅Maximum
likelihood
Consider the following model for logistic regression: P (y =1|x, h)= g(h0 + h1x) where g(z) is the
logistic function. In the preceding equation the P (y =1|x; h) , viewed as a function of x, that we can
get by changing the parameters h. What would be the range of P in such case? - ANS✅✅(0,1)
Logistic regression analysis can answer what three major questions about a dataset? -
ANS✅✅Causal analysis, forecasting of an outcome, and trend forecasting
