A student’s school has a contest where you must guess how many jelly beans are in a large cylinder. The student buys a large bag of jelly beans; counts them to find there are 275 in the bag and then dumps them in a measuring cups. The student finds that these 275 jelly beans fill about 1.5 cups. The student quickly measures the jar when no one is around. It is 20 cm in diameter and 30 cm high. About how many jelly beans would be a good estimate?