A college has over 5,000 students, 10, percent of which are left-handed. A new lecture hall is being planned that will seat 300 students, and college officials want to be sure there are enough left-handed desks. Suppose we randomly select groups of 300 students from this college. What are the mean and standard deviation of the number of left-handed students in each group of 300? You may round your answers to the nearest tenth.