Final answer:
The goal of working out with a set frequency each week relates to the 'Measurable' aspect of SMART goals, as it provides a clear way to track your progress.
Step-by-step explanation:
The goal of 3x/week resistance with 2x/week cardio relates to the 'Measurable' aspect of SMART goals. 'Measurable' goals are those that you can quantify and observe your progress towards achieving them. In this case, the frequency of the workout sessions (three times a week for resistance training and twice a week for cardio) provides a clear and quantifiable way to track whether you are meeting your exercise goals.