You posted this question more than once. Look for my answer elsewhere. Your data refers to FATAL accidents, not ANY accident.
You will also find the problem worked out at:
http://www.algebra.com/algebra/homework/Rational-functions/Rational-functions.faq.question.125800.html
The probability 1 in 4,000,000 will result in an acident.
over a life time an average driver takes 50,000 trips.
what is the probability of an accident over a lifetime
1 answer