der. It was necessary, therefore, to determine the population proportions of these age groups in order to derive the numerical strengths of these age groups within the samples for 1973 and 1987, so that weighted opinion proportions could be derived for the tested groups within the samples persons aged 30 years old and older and persons under the age of 30 years old.
The numerical composition, by relevant population group, of the 1973 and 1987 samples, derived as indicated above, is presented in Table 4.1, which may be found on the following page. The numerical composition and proportions, by relevant population group, of those members of the samples opposing the legalization of the use of marijuana, derived as indicated above, are presented in Table 4.2, which may be found on the page 5.
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Population Group 1973 Sample 1987 Sample
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