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Find the area under the standard normal distribution curve between and .
McPhail's Crowd Observation System
A systematic method for observing and categorizing behaviors within crowd events, developed by sociologist Clark McPhail.
Sporting Event
A Sporting Event is any competitive physical activity or game that follows specific rules, often engaging participants and sometimes attracting spectators.
Social Group
A gathering of individuals who connect with each other, share resembling qualities, and jointly hold a feeling of unity or identity.
Gathering
An assembly or meeting of people coming together for a common purpose, often for discussion, celebration, or community activities.
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