18. Information from the Department of Motor VehiclesH = 45.7 years with a standard deviation of o = 125years. Assuming that the distribution of drivers' agesindicates that the average age of licensed drivers isyears with a standard deviation ofJ = 125%3Dthat the distribution of drivers'years. Assumingis approximately normal,a. What proportion of licensed drivers are older the50 years old?b. What proportion of licensed drivers are youngerthan 30 years old?ages10debitBan

Answered: Image /qna-images/answer/18a1024f-af4f-4f60-81ad-1657861a2a8d.jpg

Answered: Vehicles indicates that the average age…

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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Psychology students in the Izmir University of Economics completed the Dental Anxiety Scale questionnaire in 2020. In this study, scores on the scale range from 0 (no anxiety) to 20 (extreme anxiety). The mean score was 14 and the standard deviation was 3.5. Assume that the distribution of all scores on the Dental Aroxiety Scale is normal with u= 14 and g=35. Complete parts a through c A Click here to view a table of areas under the standardized normal curve O Table of Normal Curve Areas a. Suppose you score a 18 on the Dental Anxiety Scale. Find the z-value for this score. z= (Round to the nearest hundredth as needed ) b. Find the probability that someone scores between 13 and 18 on the Dental Anxiety Scale P(13sxs 18) =D (Round to four decimal places as needed) c. Find the probability that someone scores above 17 on the Dental Anxiety Scale P(x> 17)=(Round to four decimal places as needed.) Enter your answer in each of the answer boxes. |8 目國 100 |8 案 |8 業可 0 | 会效到商同我目 |
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Psychology students in the Izmir University of Economics completed the Dental Anxiety Scale questionnaire in 2020. In this study, scores on the scale range from 0 (no anxiety) to 20 (extreme anxiety). The mean score was 14 and the standard deviation was 3.5. Assume that the distribution of all scores on the Dental Arociety Scale is normal with u= 14 and o =3.5. Complete parts a through c A Click here to view a table of areas under the standardized normal curve A Table of Normal Curve Areas a. Suppose you score a 18 on the Dental Aniety Scale. Find the z-value for this score. z= (Round to the nearest hundredth as needed) b. Find the probability that someone scores between 13 and 18 on the Dental Anxiety Scale. P(13sxs 18) =O (Round to four decimal places as needed ) c. Find the probability that someone scores above 17 on the Dental Anxiety Scale Pix> 17) =D (Round to four decimal places as needed.) Enter your answer in each of the answer boxes 男明國 1 1 网解 8 1101 |8 与的 O
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Vehicles indicates that the average age of licensed drivers is years. Assuming that the distribution of drivers' ages H = 45.7 years with a standard deviation of ở = 125 Information fre H = 45.7 years a %3D %3D is approximately normal, portion of licensed drivers are older than