Looking at the means of these samples, which value is most likely to be the mean of the population from which the samples were taken? Sample NumberSample Mean111.8212.5315.1414.3513.0612.9

The population mean is best estimated by averaging the sample means. Their average is (11.8 + 12.5 + 15.1 + 14.3 + 13.0 + 12.9) ÷ 6 ≈ 13.27. Of the choices, 12.9 is closest, so the best answer is 12.9.

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