Could you help me with those two questions? I really appreciate thank you

1, in a new fiber-optic communication system, transmission errors occur at the rate of 1.5 per ten seconds. What is the probability that more than two errors will occur during the next half-minutes?

2, suppose that on-the-job injuries in a textile mill occur at the rate of 0.1 per day.

A, what is the probability that two accidents will occur during the next (five-day) work week?

B, in the probability that four accidents will occur over the next two work weeks, the square of your answer to part (a) explain?