(Answered) In a study comparing response rates between treated and

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In a study comparing response rates between treated and non-treated subjects, 60% of subjects are observed to have both responded and been treated. If we also know that a randomization ratio of 2:1 was used (e.g. twice as many subjects were treated than were non-treated; 2 out of every 3 subjects were treated), then we can calculate that the probability of response among treated subjects is

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