Home » Data Science » Machine Learning » Model 1 has a c-index of 0.7 and Model 2 has a c-index of 0.6. Which is more accurate using a threshold of 0.5 for the risk score? Q: Practice More Questions From: Linear Prognostic Models Created with Fabric.js 4.6.0 Practice More Questions Data Analysis 2000+ Qs Machine Learning 1000+ Qs Created with Fabric.js 4.6.0 Similar Questions What is the sensitivity and specificity of a model which randomly assigns a score between 0 and 1 to each example (with equal probability) if we use a threshold of 0.7?A linear risk model for the risk of heart attack has three inputs: Age, Systolic Blood Pressure (BP), and the interaction term between Age and Systolic Blood Pressure. The coefficients for Age, BP,…For every specificity, as we vary the threshold, the sensitivity of model 1 is at least as high as model 2. Which of the following must be true?You have a model such that the lowest score for a positive example is higher than the maximum score for a negative example. What is its ROC AUC?Which decision boundary corresponds to the following decision tree? In the options, red indicates high risk, blue indicates low risk.What will this patient's risk score be one year later, if all other features remain the same?Compute the Harrell C-index for the following dataset and risk scores:A data analyst creates a data frame with data that has more than 50,000 observations in it. When they print their data frame, it slows down their console. To avoid this, they decide to switch to a…Using regression imputation, and the decision tree shown here, what is your prediction for this person's risk of heart attack?A data analyst uses the bias() function to compare the actual outcome with the predicted outcome to determine if the model is biased. They get a score of 0.8. What does this mean?Fill in the blank: To improve your draft, you select more varied hues and make the color intensity stronger. In addition, you choose darker _____ in order to reflect more light.What is the C-index for a model which always outputs 0.6 for any patient regardless of their health outcome?Which assignment of risk would make the following pair concordant?Which risk assignments would make this pair concordant?Compute the F1 score for pneumonia and mass separately based on the following retrieved labels and ground truth: Created with Fabric.js 4.6.0 Practice More Questions Data Analysis 200+ Qs Machine Learning 100+ Qs
