Approximately how much more tissue damage would be inflicted by a 2.5 mev fast neutron as compared to a 100 kev intermediate energy neutron? show all calculations for answer of 5.9 times.

The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).