how many data sets in a train round how many different predictors are used in a cross validation how many variables does it take to find the best predictor for an xi model? what is the objective of the cross validation how many data points in training what is the difference between locv and leave one out cross validation? how many xi in a training test what is cross validation in a training test which cross validation test uses leave one out cross validation? what is LOOCV in testing how many rounds are in a training and test what is the objective of the leave-one-out cross validation test what is the purpose of LOOCV what is the objective of cross validation for the use of xi why is locv used in training how many rounds to use to find xi how many rounds is a training test how is leave one out cross validation used in statistics why use leave-one-out cross validation how many different predictors are used in a training