Jennifer has oversight responsibility for the servicing and repair of her company's fleet of cars, so she frequently calls the garage mechanic to inquire whether service on various cars has been completed. because service completion times are unpredictable, she is likely to be reinforced with positive responses to her inquiries on a schedule.

variable-interval

Explanation:

In a variable-interval schedule, reinforcement is presented if the body emits at least one response after a variable interval of time. Generally, this scheme is represented by putting the average time of the variable interval. For example: VI-10min means that the booster is displayed after an average of 10 minutes and only for the first response issued.

The variable-interval schedule results in a high frequency of responses.

As Jennifer's company car repair and maintenance service completion times are unpredictable, it will likely be reinforced with positive answers to your questions. This is an example of variable-interval schedule.

the awnser is that is tru your

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answer; dr.black,who allows only certain individuals to mate;