Home » Data Science » Machine Learning » Let f(x) be the probability that a person with feature x dies within 5 years. Let Sx(t) be the survival function of a person with feature x. Assume t is measured in years. Which of the following is true? Q: Practice More Questions From: Survival Models and Time 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 Person 1 has hazard h_1(t) = 1, and Person 2 has hazard h_2(t) = 2. What is the probability of dying within the first year for each patient?Compute the probability of surviving up to 4 years S(4)S(4) given the following dataset using the Kaplan Meier estimate:You are working with the penguins dataset. You create a scatterplot with the following code:ggplot(data = penguins) +geom_point(mapping = aes(x = flipper_length_mm, y = body_mass_g))You want…Now assume that the hazards for patient 1, h_1and for patient 2, h_2 are proportional to each other. Also assume that S_1(T) > S_2(T) for some T > 0. Then which of the following is true about…Could the following table of outputs be given by a linear model with no interactions (assume not including a feature means setting it to 0)?Let’s see why F1 is used instead of the regular mean of precision and recall. Let’s say the mean of precision and recall is at least 0.75. Which of the following could be the true value of the…What is the hazard ratio between Person 1, a 40 year old non-smoker, and Person 2, a 30 year old smoker?The survival function is always:True or False: If t is larger than the longest survival time recorded in the dataset, then S(t) = 0S(t)=0 according to the Kaplan-Meier estimate.Which of the following is a difference between survival data and classification datasets?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?You use the read_csv() function to import the data from the .csv file. Assume that the name of the data frame is chocolate_df and the .csv file is in the working directory. What code chunk…You use the read_csv() function to import the data from the .csv file. Assume that the name of the data frame is flavors_df and the .csv file is in the working directory. What code chunk lets…Assume you have missing data on one of your features, and are considering two options: True or False: "Both options have the same performance".A data analyst wants to include a visual in their slideshow, then make some changes to it. Which of the following options will enable the analyst to edit the visual within the presentation… Created with Fabric.js 4.6.0 Practice More Questions Data Analysis 200+ Qs Machine Learning 100+ Qs
