Observation xy Observationxy 1 A116B2 2B117C1 3B118B1 4C219C1 5B120B1 6C221C2 7B122B1 8C223C2 9A124A1 10B125B1 11A126C2 12B127C2 13C228A1 14C229B1 15C230B2 b. Compute the row percentages. Row percentages y-value x- rating12Total A B C Solution Total A=5 Total B=13 Total C=12.