Q4: The following data represent weights for 25 items construct a frequency distribution table: 15, 9, 18, 10, 5, 8, 10, 7, 2, 15, 3, 5, 15, 10, 15, 9, 8, 18, 1, 2, 11, 12,5, 8, 1

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Q: (a) c (b) E[X] (c) E[X²]

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