The probability that a patient survives a transplant is 0.55 and the probability that after surviving the transplant her system will reject it within 1 month is 0.20, what is the probability that the patient survives both critical stages

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.)