Professor Miller gives a quiz once a week but he never tells students on what day the quiz will be given.This is a _____ schedule.
A)fixed ratio
B)variable ratio
C)fixed interval
D)variable interval

Question

Quizplus · Accepted Answer

This is a variable interval schedule because the quizzes are given at unpredictable time intervals, meaning students don't know exactly when to expect the next quiz.

Professor Miller Gives a Quiz Once a Week but He