Examlex
Social smiling occurs as early as _____ of age in response to a caregiver's voice.
Z Score
A metric that shows how far a value stands from the mean within a collection of values, denoted in units of standard deviations.
Scores
Numerical values assigned to represent the performance, achievement, or characteristics of individuals or items.
Z Scores
Standardized scores that indicate the number of standard deviations a data point is from the mean of its distribution.
Mean
The arithmetic average of a set of numbers, calculated by adding all the values together and dividing by the number of values.
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