Hi everyone, I have two questions regarding a homework question (set out below):

- Can this question be addressed using simple probability or is a more advanced probability technique required (e.g. using a probability distribution)?
- What does “include the endpoints” mean? (This term is confusing me because I don't think it is normally used in simple probability calculations).

Thanks in advance.

Homework question:

15%of car crashes result in severe injury to at least one person involved in thecrash. If there are 25 major car crashes per month, calculate the followingprobabilities:

in 25 major crashes, exactly five result in severe injury

in 25 major crashes, between two and eight result in seriousinjury? (include the endpoints)

in 25 major crashes, no severe injuries occur

in 25 major crashes, at least one severe injury occurs