Considering the situation described in the question, this scenario most likely exemplifies a "fixed-interval schedule."
A fixed-interval schedule is a schedule whereby an employee or action is rewarded only after a specified period.
Thus, in this case, since Samuel is required to produce 50 units to be paid $10, then specified period, or action that is specified is after 50 units of production is made.
Hence, in this case, it is concluded that a fixed-interval schedule is a style of wage payment structure for employees.
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