Refer to the previous exercise. The probability of a motor vehicle death for adult American males is 0.0002. Repeat part b and c for a city having 1 million of them, and compare results to those for females.
a. If the binomial applies, find the mean and standard deviation of X.
b. Based on the normal distribution, find the interval of possible outcomes within three standard deviations of the mean that is almost certain to occur.