5. You run a sentiment-analysis program on Yelp reviews to determine what users think of each business reviewed. Based on this, you estimate the number of stars the establishment should have. Comparing your program's estimate with the actual number, you expect: The estimates to be roughly similar to the actual scores The estimates to be wildly different 6. In machine learning, it is common practice to use k-fold cross validation, where the data set is divided intok parts.k-1 of these are used for training and the remaining part used for testing, And this can be repeated k times, leaving out a different part each time. Is this a good way to measure how well the learned model predicts the test data (labels, values, or whatever is being predicted)? Yes No