why would you draw sample sizes of the population for a statistical model? what is sample size optimization why is sample size necessary for accuracy why is sampling helpful when building data sets how many samples to maximize accuracy why is sampling necessary what to do for accuracy model sample size to maximize accuracy which model would you draw to maximize its accuracy which method maximizes the accuracy of a ptr model? do you have to draw a sample in order to maximize accuracy? how to maximize model accuracy how to get a fixed sample size do you need to test to maximize accuracy why does the p_i model have a fixed sample size how to maximize accuracy of a model why do we need to draw a random sample how to make an accurate model why do you do random sampling how to optimize model accuracy wikipedia