g (c) Suppose that two different experimental runs are to be made on the first day of experimentation. If the two are randomly selected from all possibilities, so that any group of two runs has the same probability of selection, what is the probability that a different catalyst is used on each run

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.)