A surgical technique is performed on 12 patients. You are told there is a 70% chance of success.
Find the probability that the surgery is successful for
1. less than 7 patients
2. more than 8 patients
3. at least 5 patients.
4. fewer than 6 patients.
5. more than 5 but less than 10 patients.
6. between 4 and 8 patients inclusive.