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Drug Use Characteristics of Adolescent Treatment Centers (N=181) Substance Greatest problem drug Lifetime Use Marijuana 65.7 99.4 Nicotine 11.0 81.8 Alcohol 6.1 94.5 Cocaine/crack 5.5 34.8 Club drugs 3.9 32.0 Heroin/illicit methadone 3.3 13.8 Hallucinogens 3.3 31.5 Benzos/depressants 1.2 31.5 Inhalants 9.4 Prescription opiates 25.4 3. Which substance has the highest percentage of lifetime users? 4. Expressed as a percentage, what was the difference between marijuana and nicotin as the greatest drug problem?

Drug Use Characteristics of Adolescent Treatment Centers (N=181) Substance Greatest problem drug Lifetime Use Marijuana 65.7 99.4 Nicotine 11.0 81.8 Alcohol 6.1 94.5 Cocaine/crack 5.5 34.8 Club drugs 3.9 32.0 Heroin/illicit methadone 3.3 13.8 Hallucinogens 3.3 31.5 Benzos/depressants 1.2 31.5 Inhalants 9.4 Prescription opiates 25.4 3. Which substance has the highest percentage of lifetime users? 4. Expressed as a percentage, what was the difference between marijuana and nicotin as the greatest drug problem?

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
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Table Drug Use Characteristics of Adolescent Treatment Centers (N=181) Substance Greatest problem drug Lifetime Use* Marijuana 65.7 99.4 Nicotine 11.0 81.8 Alcohol 6.1 94.5 Cocaine/crack 5.5 34.8 Club drugs 3.9 32.0 Heroin/illicit methadone 3.3 13.8 Hallucinogens 3.3 31.5 Benzos/depressants 1.2 31.5 Inhalants 9.4 Prescription opiates 25.4 3. Which substance has the highest percentage of lifetime users? 4. Expressed as a percentage, what was the difference between marijuana and nicotine as the greatest drug problem?
Transcribed Image Text:Table Drug Use Characteristics of Adolescent Treatment Centers (N=181) Substance Greatest problem drug Lifetime Use* Marijuana 65.7 99.4 Nicotine 11.0 81.8 Alcohol 6.1 94.5 Cocaine/crack 5.5 34.8 Club drugs 3.9 32.0 Heroin/illicit methadone 3.3 13.8 Hallucinogens 3.3 31.5 Benzos/depressants 1.2 31.5 Inhalants 9.4 Prescription opiates 25.4 3. Which substance has the highest percentage of lifetime users? 4. Expressed as a percentage, what was the difference between marijuana and nicotine as the greatest drug problem?
-In statistics, the percentage is the same or equivalent to the proportion (p). Percent means per 100. For example, if there are 1,000 residents in a town, and 60% are Democrats, then, on average, 60 out of each 100 are Democrats. You determine the total number of Democrats by converting the percentage to a proportion, .60, and multiplying .60 x 1,000, which equals 600. -To determine a percentage, we divide the part by the whole and multiply by 100. So, if 8 out of 234 seniors are reported to have tried Meth, we calculate the percentage: 8/234 0.0342 and multiply 0.0342 x 100= 3.42%. -Remember: when you multiply by 10, move the decimal point one place to the right3; when you multiply by 100, move the decimal point two places to the right, etc. Answer the questions that follow the Table below Adolescents at three drug treatment centers were surveyed. The questionnaire used consisted of 102 questions and was divided into four sections. The third section asked about past drug use. The teens were asked about the greatest drug problem among 12 substances- marijuana, hallucinogens, alcohol, benzodiazepines, depressants, non- cocaine stimulants, cocaine, heroin, prescription opiates, inhalants, other "club drugs", and nicotine.
Transcribed Image Text:-In statistics, the percentage is the same or equivalent to the proportion (p). Percent means per 100. For example, if there are 1,000 residents in a town, and 60% are Democrats, then, on average, 60 out of each 100 are Democrats. You determine the total number of Democrats by converting the percentage to a proportion, .60, and multiplying .60 x 1,000, which equals 600. -To determine a percentage, we divide the part by the whole and multiply by 100. So, if 8 out of 234 seniors are reported to have tried Meth, we calculate the percentage: 8/234 0.0342 and multiply 0.0342 x 100= 3.42%. -Remember: when you multiply by 10, move the decimal point one place to the right3; when you multiply by 100, move the decimal point two places to the right, etc. Answer the questions that follow the Table below Adolescents at three drug treatment centers were surveyed. The questionnaire used consisted of 102 questions and was divided into four sections. The third section asked about past drug use. The teens were asked about the greatest drug problem among 12 substances- marijuana, hallucinogens, alcohol, benzodiazepines, depressants, non- cocaine stimulants, cocaine, heroin, prescription opiates, inhalants, other "club drugs", and nicotine.
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