The National Occupant Protection Use Survey (NOPUS) was conducted to provide probability-based data on motorcycle helmet use in the United States. The survey was conducted by sendingobservers to randomly selected roadway sites where they collected data on motorcycle helmet use,including the number of motorcyclists wearing a Department of Transportation (DOT)-complianthelmet (National Highway Traffic Safety Administration website, January 7, 2010). Sample dataconsistent with the most recent NOPUS are shown below. Answer questions 8 -10.Type of HelmetDOT-RegionCompliantNoncompliantNortheast9662Midwest8643South9249West7616Total350170(Hint: The above table is a cross-tabulation, but the right margin is missing. You will need tocalculate the total number of motorcyclists for each region as well as the total number ofmotorcyclists of all four regions.) What is the probability of DOT-compliant helmet use by region of the country? What region hasthe highest probability of DOT-compliant helmet use?(Hint: Please pay attention that the question asks about the probability of DOT-compliant helmetuse in each region of the country. You need to divide the number of motorcyclists wearing a DOT-compliant helmet in each region by the total number of motorcyclists of the region to calculate theprobability.)

here complete the table and define events REGION DOT COMPLIANT( as D) NON COMPLIANT(as D')…

Answered: What is the probability of…

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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Teenagers who do not sleep well or long enough may have a higher risk of raised blood pressure, which could lead to cardiovascular disease later in life. The odds of raised blood pressure increase 3.5 times for those who have trouble falling asleep at night or who wake up too early and 2.5 times for those with sleeping periods of fewer than 6.5 hours. A health psychologist is interested in studying teenagers who have diastolic blood pressure scores in the top 20%. Diastolic blood pressure scores for teenagers follow a normal distribution with μ = 72 and σ = 10. Use the Distributions tool to help answer the questions that follow. The minimum z-score necessary to be in the top 20% of the diastolic blood pressure distribution is z =0.842 . Use this z-score to determine X, the corresponding diastolic blood pressure score. X = 80.42 This score, X, is the 80th percentile of diastolic blood pressure scores among teenagers. The percentile rank of this score is 80%…

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What is the probability of DOT-compliant helmet use by region of the country? What region has the highest probability of DOT-compliant helmet use?