Kai Developed Normally Until the Age of Two

question 79

Multiple Choice

Kai developed normally until the age of two. After the age of two, he began to lose the skills that he had previously acquired. Kai may be suffering from ________.

• A) childhood disintegrative disorder.
• B) dyslexia.
• C) multiple sclerosis.
• D) Down syndrome.

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Definitions:

Mean Times

The average duration or period for an event or series of events.

Observations

Data collected during an experiment or study, often recorded as evidence or for analysis.

Sum

In mathematics, the sum represents the total or result of adding two or more numbers or quantities together.

Measure of Variability

A measure of variability quantifies the spread of data points in a dataset, indicating how much the data values differ from each other.