The following table of data shows the scores of 20 students on a math test. 80 75 85 92 60 78 81 85 79 100 85 83 77 85 88 92 76 90 85 79 (a) Calculate the mean, median and mode of the data given. (b) Based on the given data, which measure of central tendency - mean, median or mode - would be the most appropriate to use and why? Provide a justification for why your chosen measure is preferable over the other two measures.

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