The following table summarizes the number of individuals that that were offered

Question

The following table summarizes the number of individuals that that were offered special assistance in three areas by a community agency 2· Drugs/Alcohol Family crisis counseling 20 Other 10 20 If you were to select someone at random from the records for last year, what is the probability that the person would be in the "drugs/alcohol category? (Please respond in decimal form.) a. b. If you were to select someone at random from the records for last year, what is the probability that the person would NOTbe in the 'Other category? (Please respond in decimal form.)

Explanation / Answer

Total number of persons under consideration=10+20+20=50

a)Probability that the person would be in the drug/alcohol category=(total no of persons in the drug category)/(total number of persons)=10/50=0.2

b) Required probability is=1-((persons in other category)/(total no of persons))=1-(20/50)=1-0.4=0.6

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