2. The length in days of human pregnancies is known to be normally distributed with a mean of 266 days and a standard deviation of 16 days. a. between what number of days do the middle 95% of all pregnancies fall? b. How long do the shortest 2.5% of all pregnancies last? c. How long do the longest 5% of all pregnancies last? d. If a pregnant woman is randomly chosen, what is the probability that her pregnancy will last longer than 270 days?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
icon
Related questions
Question
2. The length in days of human pregnancies is known to be normally distributed with a mean of 266 days and a standard deviation of 16 days. a. between what number of days do the middle 95% of all pregnancies fall? b. How long do the shortest 2.5% of all pregnancies last? c. How long do the longest 5% of all pregnancies last? d. If a pregnant woman is randomly chosen, what is the probability that her pregnancy will last longer than 270 days?
Expert Solution
steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Point Estimation, Limit Theorems, Approximations, and Bounds
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill