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When Cabbage Patch Dolls were introduced, they were extremely popular at Christmas, and most stores sold out. By the next year, there were plenty still available at Christmas. What happened?
Population Proportion
A statistic that represents the fraction of the population that has a particular characteristic or attribute.
Chi-squared Test
A statistical test used to determine the likelihood of an observed distribution of data differing from a theoretical distribution.
Chi-squared Test
A statistical test used to determine if there is a significant difference between the expected frequencies and the observed frequencies in one or more categories.
Contingency Table
A type of table used in statistical analysis to summarize the relationship between several categorical variables.
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