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A father talked on the telephone in front of his baby.The next day,the baby picked up a toy telephone and repeated his father's actions.According to Piaget,this is an example of
Democratic Candidate
A person seeking or nominated for election representing the Democratic Party in the United States.
Confidence Interval
An interval estimate of a population parameter that is computed from sample data, indicating the reliability of an estimate.
Normally Distributed
Describes a dataset whose distribution forms a symmetric, bell-shaped curve when plotted, with most data near the mean.
Margin of Error
An expression of the amount of random sampling error in a survey's results, indicating the range within which the true population parameter is likely to lie with a certain level of confidence.
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