The following grades, Table 1(g), were given for a student assignment, compute the mean, x, the mode and the standard deviation, s: (85, 65, 40, 55, 66, 75, 80, 66, 57, 86, 47, 94, 81, 72, 83, 51, 63, 77, 36, 68) Table 1(g)

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