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In probability theory,___________is a process in which each case has a known and equal chance of selection.
Voices
The sounds produced by humans and animals using their vocal cords, especially when speaking or singing.
Object Permanence
The understanding that objects continue to exist even when they cannot be seen, heard, or touched, which develops in infants around the age of 8 to 12 months.
Representational Abilities
The cognitive ability to use symbols, language, and pictures to represent and understand the world.
Familiar Objects
Items or things that are well known to a person and easily recognized.
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