Examlex
Which of the following measures of central tendency can be used at any level of measurement?
Umbilical Cord
A flexible cord that connects a fetus to the placenta, delivering oxygen and nutrients and removing waste products from the fetus.
Zygote
A fertilized egg cell that results from the union of a female gamete (egg) with a male gamete (sperm).
Concrete Operations
a stage in Jean Piaget's theory of cognitive development during which children gain the ability to think logically about concrete events.
Preoperational
A stage in Piaget's theory of cognitive development, occurring roughly between the ages of 2 and 7, characterized by symbolic thinking, egocentrism, and a lack of operational thought.
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