Which two ratios form a proportion? A)
2:3 and 4:12
B)
2:3 and 6:12
C)
2:3 and 12 : 18
D)
2 : 3 and 12 : 36

Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)