The Greensboro Coliseum is considering expanding its seating capacity and needs to


The Greensboro Coliseum is considering expanding its seating capacity and needs to know
both the average number of people who attend events there and the variability in this number.
The following are the attendances (in thousands) at nine randomly selected sporting events.
Find point estimates of the mean and the variance of the population from which the sample
was draw
8.8 14.0 21.3 7.9 12.5 20.6 16.3 14.1 13.0


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