Team X entered the Netflix challenge to predict some missing movie ratings and submitted its algorithm. Netflix was then compute the performance of the algorithm by using RMSE (root-mean-square) criterion using its unpublished testing data. There are four movies in the testing data with the following ratings: 4,3,3, and 1. And the algorithm gave the following ratings for these four movies: 4,2,3, and 2. What would be the RMSE of the algorithm for this testing data?

Q6 (2points). Team X entered the Netflix challenge to predict some missing movie ratings and submitted its algorithm. Netflix was then compute the performance of the algorithm by using RMSE (root-mean- square) criterion using its unpublished testing data. There are four movies in the testing data with the following ratings: 4,3,3, and 1. And the algorithm gave the following ratings for these four movies: 4,2,3, and 2. What would be the RMSE of the algorithm for this testing data