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A developmental psychologist studies the number of words spoken in a day by a group of 20 toddlers. The data shows a wide variation, with some toddlers speaking very few words and others speaking many. The psychologist wants to calculate a single value to best represent the 'typical' number of words spoken by a toddler in this group. What is the primary justification for this statistical approach?
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Interpreting a 'Typical' Value
A developmental psychologist studies the number of words spoken in a day by a group of 20 toddlers. The data shows a wide variation, with some toddlers speaking very few words and others speaking many. The psychologist wants to calculate a single value to best represent the 'typical' number of words spoken by a toddler in this group. What is the primary justification for this statistical approach?
Median
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Mean
In psychological research, what is the primary purpose of using measures of central tendency?