Q1: The data in the following table are the mathematic degrees of 130 pupil Mathematic degrees 10-19 20-29 30-39 40-49 50-59 60-69 70-79 Pupils (fi) 2 5 11 25 31 27 17 Find the (1)Mean, (2)Median, (3) Mode, (4)S.D, (5) C.V% 80-89 7 90-99 5
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