What Is the Variance for the Following Population of Scores

question 54

Multiple Choice

What is the variance for the following population of scores? Scores: 5,2,5,4​

• A)​6
• B)​2
• C)​1.5
• D)​1.22

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Definitions:

Tertiary Circular Reactions

The stage in infant development, according to Piaget, characterized by the purposeful adaptation of established schemes to new situations.

Mental Representations

Internal cognitive symbols that stand in for objects, events, or concepts, allowing individuals to mentally simulate and think about those entities.

Object Permanence

The understanding that objects continue to exist even when they cannot be seen, heard, or otherwise sensed, a concept developed during infancy.

Cognitive Advancement

The development and improvement in mental processes such as thinking, problem-solving, and decision-making.