Problem #2. Little is known about heroin and cocaine use in Afghanistan. Opium was known tothe ancient Persians and has traditionally been used for recreation, pain relief, and treatment ofmental disorders. Data were gathered from 306 consecutive addicts who sought treatment anidentified addicts center from July to September in a recent year. An interview was conductedwith the subject and a close relative. The data collected revealed that the mean (average) age ofthe subject was 37.0 years; that 97.7% were male, of whom 73.9% were married and 24.2% weresingle. About 36 % of the addicts reported that they had been using the substance for more than10 years. Only 2.3% reported use of one-year or less. The Table below gives the frequencydistribution for the longest duration of abstinence. 74.3% gave a history of abstinence. Only1.6% reported 5 years or more as the longest period of abstinence. 18.3% indicated one to threemonths as the longest period of abstinence. Overall, 62.1 % relapsed before one year ofabstinence had elapsed.TableFrequency Distribution of Addicts by Duration of Current Opiate Use and longestDuration of Abstinence Current Use by year fDuration of Use f %1.7 2.3 No abstinence 63 20.619 6.21 week18 5.9318 5.91 to 4 wks.28 12.419 6.21 to 3 mos.56 18.34.5.31 10.1 3 to 6 mos.44 14.46.27 8.86 to 12 mos.34 11.127 8.81 to 3 yrs.29 9.518 5.93 to 5 yrs.6 2.06 2.0 5 yrs.5 1.61024 7.8No answer13 4.211-1526 8.416-2057 18.62027 8.813. Does the last column of percentages in the table add up to 100%?Check theresearchers' calculation of one of the percentages by dividing the numberwho reported no abstinence by the total number in the sample andmultiplying that number by 100. To two decimal places, what answer do youget?

13. The last column of percentages is given as: % 20.6 5.9 12.4 18.3 14.4 11.1 9.5…

Answered: 13. Does the last column of percentages…

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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13. Does the last column of percentages in the table add up to 100%?Check the researchers' calculation of one of the percentages by dividing the number who reported no abstinence by the total number in the sample and multiplying that number by 100. To two decimal places, what answer do you get?