Normal Distribution Wallace drives from her home on Long Island to work in Brooklyn. The driving times are normally distributed with a mean of 35 minutes and a standard deviation of 8 minutes.
1. In what percent of the days will it take her 30 minutes or less to drive to work?
2. In what percent of the days will it take her 43 minutes or more to drive to work?
3. In what percent of the days will it take her between 30 and 43 minutes to drive to work?
4. Some days there might be delays, so the trip will take longer than usual. How long will the longest 10 percent of the trips take?