Which ggplot2 geometry corresponds to the base R function plot() ? [ Select ] geom_point() geom_boxplot() geom_density() geom_histogram() Evaluate each statement and indicate whether it is true or false: A. R2 measures the proportion of the variance in the target variable that is predictable from the feature variables, and it ranges from 0 to 1. TRUE B. A R2 value closer to 1 always indicates that the feature variables are the cause of changes in the target variable. [ Select ] TRUE FALSE C. R2 does not account for the number of feature variables in the model, which can lead to overfitting if too many features are included. [ Select ] TRUE FALSE D. R2 can be used to measure the goodness of fit of both linear and non-linear models FALSE Given the density estimation plot below, match the appropriate bandwidth to the estimated density line. The bandwidths are: h <- c(0.1, 2, 5) plot of chunk unnamed-chunk-1 The red density curve corresponds to the bandwidth h = [ Select ] 2 0.1 5 The green density curve corresponds to the bandwidth h = [ Select ] 2 0.1 5 The blue density curve corresponds to the bandwidth h = [ Select ] 5 2 0.1 多重下拉选择题