a college has over 5{,}0005,0005, comma, 000 students, 10\, percent of which are left-handed. a new lecture hall is being planned that will seat 300300300 students, and college officials want to be sure there are enough left-handed desks. suppose we randomly select groups of 300300300 students from this college. what are the mean and standard deviation of the number of left-handed students in each group of 300300300? you may round your answers to the nearest tenth.