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With each level (maybe, unsure...) representing 0-6, and the years representing themselves, the population in general has a fear level with a mean of 5.4
With each level (maybe, unsure...) representing 0-6, and the years representing themselves, the population in general has a fear level with a mean of 5.4 and a standard deviation of 2.3 in the year 2011. Find the z score of a population with a mean fear factor of 5.1.
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