The length of human pregnancies from conception to birth varies according to a distribution that can be modeled by a normal random variable with mean267days and standard deviation17days.

Question 1.What percent of pregnancies last less than 240 days?Notethat the answer is requested as apercent. Use 2 decimal places in your answer.

%

Question 2.What percent of pregnancies last between 240 and 270 days?Notethat the answer is requested as apercent. Use 2 decimal places in your answer.

%