Diseases tend to spread according to the exponential growth model. In the early days of AIDS, the growth factor (i. e. common ratio; growth multiplier) was around 1.8. In 1983, about 1800 people in the U. S. died of AIDS. If the trend had continued unchecked, how many people would have died from AIDS in 2004?

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.