## Question 517:

An executive drives his vehicle from home to work daily. Driving times are normally distributed with a mean of 35 minutes and standard deviation of 8 minutes.What percent of days will it take him 30 or fewer minutes?

What percent of days will it take him between 40-50 minutes?

What percent of days will it take him between 30-45 minutes?

How long will the longest 10% of the trips take?