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Weights of Teachers The following data represent the weights in pounds of a sample of 25 teachers: 164, 148, 137, 157, 173, 156, 177, 172, 169, 165, 145, 168, 163, 162, 174, 152, 156, 168, 154, 151, 174, 146, 134, 140, and 171. {Weights of Teachers Narrative} Compute the range and coefficient of variation.
Random Sample
A subset of individuals chosen from a statistical population in such a way that each individual has an equal chance of being selected.
Conversation Length
The duration of an exchange of thoughts or information between two or more individuals, often measured in units of time.
Margin of Error
An expression of the amount of random sampling error in a survey's results, often used to create confidence intervals around a sample statistic.
Binomial Proportion
A statistical measure that represents the proportion of successes in a series of independent trials in a binomial distribution.
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