Examlex
The z value tells us the number of standard deviations that a value, x, is from the mean.
Native English Speaker
An individual who speaks English as their first language, usually because it is the language spoken in their familial or social environment from an early age.
Spoken Language
A form of human communication that is verbal in nature, consisting of the use of words in a structured and conventional way.
Reflexes
Automatic and involuntary responses to stimuli, which are innate and occur without conscious thought.
Babbling
An infant’s repetition of certain syllables, such as ba-ba-ba, that begins when babies are between 6 and 9 months old.
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