Lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of
Question:
Lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days.
a. What is the percentage of pregnancies that last less than 250 days?
b. What is the percentage of pregnancies that last more than 300 days?
c. If a birth is considered premature if the pregnancy lasts less than 238 days, what is the percentage of premature births?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Statistical Reasoning for Everyday Life
ISBN: 978-0321817624
4th edition
Authors: Jeff Bennett, Bill Briggs, Mario F. Triola
Question Posted: