how many train sets in a test why is model #2 more accurate than model #1 what is model accuracies in test & train sets how does the mean of the test sets of each pair of test sets differ what statistical analysis does r use how to find the sensitivity of r model how to find the difference between a model and a test set in r what is the statistical test used for predicting the range of a set of tests? how many tests and train sets in r? how many test train pairs can i run what is the mean of each test pair what analysis do i need to run how many test sets to build a training model how to test an average linear model what analyses do you need to run in r to analyze data how to calculate accuracies in a linear model how to find the difference between a test & train set in a statistical model what r function does an analysis use what is the accuracies of a model what does the mean of model #2 mean