Mathematics, 27.01.2020 22:31 MaeWolfe
Mercury is a persistent and dispersive environmental contaminant found in many ecosystems around the world. when released as an industrial by-product, it often finds its way into aquatic systems where it can have deleterious effects on various avian and aquatic species. the accompanying data on blood mercury concentration (µg/g) for adult females near contaminated rivers in a state was read from a graph in an article. 0.20 0.22 0.26 0.30 0.35 0.42 0.54 0.57 1.42 1.71 1.83 2.21 2.26 3.08 3.24 (a) determine the values of the sample mean and sample median. hint: xi = 18.61. (round your answers to three decimal places.) x = = explain why they are different. there is heavy negative skewness in the data. there is heavy positive skewness in the data. the sample mean and sample median are never equal. there are an odd number of data values. they aren't different since the data is symmetric. (b) determine the value of the 10% trimmed mean. (round your answer to three decimal places.) compare to the mean and median. it is the same as the mean. it is between the values of the mean and median. it is the same as the median. it is below both the mean and median. it is above both the mean and the median.
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Mercury is a persistent and dispersive environmental contaminant found in many ecosystems around the...
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