Please help me to solve this,

1) Security systems. The security system of a house is designed to have 99% reliability. Suppose that nine houses equipped with this system experience a robbery attempt. Find the probabilities of these events:

1. At least one alarm was triggered.
2. More than seven alarms were triggered.
3. Eight or fewer alarms were triggered.

2) Back pain. Six out of ten adults say that lower back pain considerably limits their athletic activities. A randomly selected sample of n=8 adults was asked if lower back pain was a limiting factor for their athletic activities. The MINITAB printout shows the cumulative and individual probabilities for a binomial random variable with n=8 and p=0.6.