A survey of 10 students was conducted to investigate the amount of time they spend on social media each day. Students were given a timer and asked to record the number of minutes spent every time they accessed social media. The students' total times for one day are given below (in minutes) . 
The standard deviation for these data is:
Definitions:
Dual-Process Theory
A cognitive psychology theory that proposes there are two distinct systems for processing information: a fast, automatic, intuitive system, and a slower, more analytical, deliberate system.
Social Identity Theory
A psychological theory that explains how individuals categorize themselves and others into groups, influencing their sense of self and their interactions with others.
Political Party
An organized group of people with at least roughly similar political aims and opinions, seeking to influence public policy by getting its candidates elected to public office.
Role Theory
A theoretical perspective based on the premise that a substantial portion of observable, day-to-day social behavior is simply persons carrying out role expectations.
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