The following table shows the number of workdays absent based on the length of employment in years. 
What is the standard error of estimate?
Definitions:
Circular Reactions
Repetitive actions or behaviors, primarily in infants, which serve to explore and learn about the environment, and are a key part of cognitive development.
Equilibration
In Piaget's theory, the cognitive process of achieving balance between one's existing mental schemas and new experiences.
Secondary Circular Reactions
Repetitive actions oriented around external objects, typically observed in infants from 4 to 8 months as part of Piaget's sensorimotor stage.
Sensorimotor Thought
describes the stage in early childhood cognitive development where thinking is based primarily on physical actions and sensory experiences.
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