If One Assumes That the Gestational Age Is Normally Distributed

question 11

Multiple Choice

If one assumes that the gestational age is normally distributed with mean 270 days and standard deviation 16.5, what proportion of births would be considered pre-term (less than 37 weeks) ?

• A) 0.18
• B) 0.25
• C) 0.33
• D) 0.75