WorksheetsTEST
Total questions: 11
Worksheet time: 8mins
Logistic regression is mainly used for classification.
TRUE
FALSE
Which of the following evaluation metrics CANNOT be applied in case of logistic regression output to compare with target?
AUC-ROC
Accuracy
Logloss
Mean squared error
Given this confusion matrix, calculate the Overall Accuracy of the model? Leave your answer to 3 decimal points.
(a)
Standardisation of features must be performed before training a logistic regression.
TRUE
FALSE
Words or phrases that describe logistic regression.
binary
non-linear activation function
outputs are -1 and 1
From the lecture notes, compute the odds ratio of churning for customers with One Year Contracts compared to customers without one. Leave your answer to 3 decimal points.
(a)
In the lecture notes, the logistic regression model predicts the rate of churn.
TRUE
FALSE
Logistic regression is an unsupervised machine learning algorithm.
TRUE
FALSE
Given this confusion matrix, calculate the Specificity of the model? Leave your answer to 3 decimal points.
(a)
What is odds ratio?
The ratio of churn.
The coefficients of the variables.
The ratio of the probability of success to the probability of failure.
The exponential of the coefficients of the variables.
Choose an answer for (BLANK) at the end of the next sentence. In the workshop, we remove the variable one by one until (BLANK)
we stop randomly.
all variables are significant.
correlation between variables are ≥ 0.8.
we reach our target of 12 variables.
