(1) tot
(1) total population: 650+350= 1000,
Satisfaction: 5501000 = 55%, 55% × 360 = 198,
Very satisfied:1001000 =10%, 10% × 360 = 36,
Dissatisfied: 3001000 = 30%. 30% × 360 = 108,
Very dissatisfied: 501000 = 5%, 5% × 360 = 18,
(2) Yes, because 35% people are dissatisfied with the canteen, school leaders should try to improve the food in the canteen.