A group of students is asked if they travel Students travelling Students not by car travelling by car 14 to school by car. Here are the results. 11 a) What percentage of these students do not travel to school by car? % No of students b) 14 of these students travel by car. Number of cars in one car Some of these travel in the same car. Fill the missing frequency in the table. c) Work out the mean number of students in each car