If you were to select someone at random from the records for last year, what is the probability that the person would be in each of the following categories: (a) drug/alcohol, (b) family, (c) drug/alcohol or family,
The following numbers of individuals in a company recieved special assistant from the personnel department last year:
Drug/alcohol 10
Family crisis counseling 20
Other 20
Total 50
If you were to select someone at random from the records for last year, what is the
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