The Symbol σ ² Is Used to Represent the _____

question 84

Multiple Choice

The symbol σ ² is used to represent the _____.

• A) variance of a population
• B) standard deviation of a sample
• C) standard deviation of a population
• D) variance of a sample

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Definitions:

Formal Operations

The final stage of cognitive development in Piaget's theory, characterized by logical, systematic thinking and abstract reasoning.

Concrete Operations

A stage in Piaget's theory of cognitive development in which children from about 7 to 12 years old develop logical thinking but still struggle with abstract concepts.

Zone Of Proximal Development

A concept in education and cognitive psychology referring to the difference between what a learner can do without help and what they can achieve with guidance and encouragement.

Vygotsky

A Russian psychologist who proposed the sociocultural theory of cognitive development, emphasizing the role of social interaction in learning.