Find the Mean and the Variance of X

question 60

Short Answer

Find the mean and the variance of X.

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Definitions:

Ulnar Grasp

Ulnar grasp is a developmental milestone in infants where they can hold objects by closing their fingers against the palm, using the pinky side of the hand.

Palmar Reflex

An involuntary response observed in infants, where the hand closes over an object placed in the palm.

Motor Development

The process of change in physical movement capabilities observed across the lifespan from infancy through adulthood.

Social Functioning

The ability of an individual to interact and perform in a social environment, encompassing both the performance of daily activities and the quality of relationships with others.