The mean age for a person getting married for the first time is 27.3 years. Assume the ages for first marriages are normal with a standard deviation of 4.9 years. (Give probability answers to four...

The mean age for a person getting married for the first time is 27.3 years. Assume the ages for first marriages are normal with a standard deviation of 4.9 years. (Give probability answers to four decimal places.)

d) 85% of people getting married for the first time do so before what age?