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The lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days and a standard deviation of 13 days. A distribution of values is normal with a mean of 261 and a standard deviation of 13. What percentage of pregnancies last fewer than 251 days? P(X < 251 days) - % Enter your answer as a percent accurate to 1 decimal place (do not enter the "%" sign). Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

The lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days and a standard deviation of 13 days. A distribution of values is normal with a mean of 261 and a standard deviation of 13. What percentage of pregnancies last fewer than 251 days? P(X < 251 days) - % Enter your answer as a percent accurate to 1 decimal place (do not enter the "%" sign). Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days and a standard deviation of 13 days. A distribution of values is normal with a mean of 261 and a standard deviation of 13. Rectar What percentage of pregnancies last fewer than 251 days? P(X < 251 days) =| Enter your answer as a percent accurate to 1 decimal place (do not enter the "%" sign). Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
Transcribed Image Text:The lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days and a standard deviation of 13 days. A distribution of values is normal with a mean of 261 and a standard deviation of 13. Rectar What percentage of pregnancies last fewer than 251 days? P(X < 251 days) =| Enter your answer as a percent accurate to 1 decimal place (do not enter the "%" sign). Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
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