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Which of the following statements are true?

A.) A point estimate of a population parameter is a single number that can be regarded as a sensible value of the parameter.\

B.) The sample variance is a point estimator of the population variance.

C.) All of the above statements are true.

D.) The sample mean is a point estimator of the population mean.

E.) A point estimate of a population parameter is obtained by selecting a suitable statistic and computing its value from the given sample data. The selected statistic is called the point estimator of the parameter.

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