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If current trends continue,when will the worldwide total fertility rate (TFR) reach replacement rate?
Significance Level
A threshold in hypothesis testing that determines the probability of rejecting a true null hypothesis, usually denoted as alpha (α).
Chi-squared Test
An analytical tool designed to assess if the observed frequencies differ significantly from those that were expected in one or more categories.
Normal Distribution
The distribution exhibits a symmetrical pattern centered on the mean, demonstrating the more common appearance of close-to-mean data than those at a distance.
Degrees Of Freedom
The number of values in a study that are free to vary when statistics, like variance, are being calculated, influencing the shape of various distributions.
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