Which of the following is the mean of the squared deviations of x values from th

Question

Which of the following is the mean of the squared deviations of x values from the mean? a. standard deviation b. population variance c. sample variance The values of the variance and standard deviation are a. never negative b. always positive c. never zero A summary measure calculated for the population data is called a. a population parameter b. a sample statistic c. an outlier A summary measure calculated for the sample data is called a a. population parameter b. sample statistic c. box-and-whisker plot Chebyshev's theorem can be applied to a. any distribution b. bell-shaped distributions only c. skewed distributions only

Explanation / Answer

6) b) population variance

7) b) never negative

8) a) a population parameter

9) b) sample statistic

10) b) bell shaped distribution only

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