A group of 10 students participated in a study of nutritional awareness.What is the sample standard deviation 
of their scores? Their scores follow: 20,19,22,20,15,18,15,21,19,20
Definitions:
Adult Weight
A measurement that reflects the body mass of an individual achieved after completing the natural growth and development process.
Fast Mapping
A process of quickly determining a word’s meaning, which facilitates children’s vocabulary development.
Watching Television
The activity of viewing content on a TV set, involving both entertainment and informational purposes.
Retrieval Cues
Stimuli that assist in the recall of information stored in memories, facilitating access to stored information.
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