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Question 9 B0/1 pt 53 94 U Details The lengths of pregnancies in a small rural village are normally distributed with a mean of 262 days and a standard deviation of 12 days. A distribution of values is normal with a mean of 262 and a standard deviation of 12. What percentage of pregnancies last fewer than 258 days? P(X < 258 days) = %

Question 9 B0/1 pt 53 94 U Details The lengths of pregnancies in a small rural village are normally distributed with a mean of 262 days and a standard deviation of 12 days. A distribution of values is normal with a mean of 262 and a standard deviation of 12. What percentage of pregnancies last fewer than 258 days? P(X < 258 days) = %

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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- Question 9 C0/1 pt O3 3 94 O Details The lengths of pregnancies in a small rural village are normally distributed with a mean of 262 days and a standard deviation of 12 days. A distribution of values is normal with a mean of 262 and a standard deviation of 12. What percentage of pregnancies last fewer than 258 days? P(X < 258 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. Question 10 C0/1 pt O3 3 99 O Details The combined SAT scores for the students at a local high school are normally distributed with a mean of 1466 and a standard deviation of 304. The local college includes a minimum score of 1618 in its admission requirements. What percentage of students from this school earn scores that fail to satisfy the admission requirement? P(X < 1618) = % 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. Question 11 C 0/2 pts 53 2 99 O Details Engineers must consider the diameters of heads when designing helmets. The company researchers have determined that the population of potential clientele have head diameters that are normally distributed with a mean of 6.1-in and a standard deviation of 1.2-in. Due to financial constraints, the helmets will be designed to fit all men except those with head diameters that are in the smallest 1.2% or largest 1.2%. What is the minimum head diameter that will fit the clientele? min = What is the maximum head diameter that will fit the clientele? max =
Transcribed Image Text:- Question 9 C0/1 pt O3 3 94 O Details The lengths of pregnancies in a small rural village are normally distributed with a mean of 262 days and a standard deviation of 12 days. A distribution of values is normal with a mean of 262 and a standard deviation of 12. What percentage of pregnancies last fewer than 258 days? P(X < 258 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. Question 10 C0/1 pt O3 3 99 O Details The combined SAT scores for the students at a local high school are normally distributed with a mean of 1466 and a standard deviation of 304. The local college includes a minimum score of 1618 in its admission requirements. What percentage of students from this school earn scores that fail to satisfy the admission requirement? P(X < 1618) = % 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. Question 11 C 0/2 pts 53 2 99 O Details Engineers must consider the diameters of heads when designing helmets. The company researchers have determined that the population of potential clientele have head diameters that are normally distributed with a mean of 6.1-in and a standard deviation of 1.2-in. Due to financial constraints, the helmets will be designed to fit all men except those with head diameters that are in the smallest 1.2% or largest 1.2%. What is the minimum head diameter that will fit the clientele? min = What is the maximum head diameter that will fit the clientele? max =
• Question 4 B0/1 pt 53 2 96 Details A manufacturer knows that their items have a normally distributed lifespan, with a mean of 6.4 years, and standard deviation of 1.1 years. The 7% of items with the shortest lifespan will last less than how many years? Give your answer to one decimal place. • Question 5 C0/1 pt 53 2 98 Details A particular fruit's weights are normally distributed, with a mean of 503 grams and a standard deviation of 14 grams. The heaviest 14% of fruits weigh more than how many grams? Give your answer to the nearest gram.
Transcribed Image Text:• Question 4 B0/1 pt 53 2 96 Details A manufacturer knows that their items have a normally distributed lifespan, with a mean of 6.4 years, and standard deviation of 1.1 years. The 7% of items with the shortest lifespan will last less than how many years? Give your answer to one decimal place. • Question 5 C0/1 pt 53 2 98 Details A particular fruit's weights are normally distributed, with a mean of 503 grams and a standard deviation of 14 grams. The heaviest 14% of fruits weigh more than how many grams? Give your answer to the nearest gram.
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