Asample of student-owned vehicles produced by general motors was identified and the make of each noted. the resulting sample follows (ch = chevrolet, p = pontiac, b = buick, o = oldsmobile, ca = cadillac, g = ) what percentage of these cars were chevrolets? pontiacs? oldsmobiles? buicks? cadillacs? gmc? (give your answer correct to the nearest whole ) what percentage of these cars were chevrolets? pontiacs? oldsmobiles? buicks? cadillacs? gmc? (give your answer correct to the nearest whole ) what percentage of these cars were chevrolets? pontiacs? oldsmobiles? buicks? cadillacs? gmc? (give your answer correct to the nearest whole number.)